Over 1 million tech questions and answers.

Windows Mobile 5 question: file type association associate File Viewer

Q: Windows Mobile 5 question: file type association associate File Viewer

I have a smartphone running Windows Mobile 5.0. I tried to install Acrobat Reader and it didn't work. Now the .pdf association with File Viewer doesn't work. Does anyone know how to create file associations? Either a registry hack or free software would be good.

Read other answers
Preferred Solution: Windows Mobile 5 question: file type association associate File Viewer

I recommend downloading and running Reimage. It's a computer repair tool that has been proven to identify and fix many Windows problems with a high level of success.

I've used it in the past to identify and fix everything from blue screens (BSOD's), ActiveX errors, corrupt files and processes, dll/exe/sys errors, recover lost memory, Windows update problems, defragging, malware removal etc.

You can download it direct from this link http://downloadreimage.com/download.php. (This link will automatically start a download of Reimage that you can save to your computer.)


I just need to disassociate jpg or jpeg from Irfanview, which is normally the program I use for quick viewing those files. But, in Windows Explorer's type, Irfanview takes a lot of room (call me picky). For example, MP4 files are listed as such: MP4 File. But jpg isn't. How can I force Default Programs to just not list any program to open jpg or jpeg files, and instead ask every time I click on jpg or jpeg files. I know, someone will say but why? Well, we all have our quirks and that is one of mine.
For instance, I have an iPad. I asked in the Apple Communities if I could call the virtual keyboard on a whim. No one gave me a clear answer -- it can't be done -- without sermonizing about why would I want to do that, that is not what Apple meant. Sheesh! People have their own style.

So, can it be done to jpg or jpeg files?

Thank you.

A:File association - can I dis-associate completely?

Hello Roxy,

You can download and merge the attached REG file below, then restart the computer to completely unassociate the JPG and JPEG file extensions.

If you find that you do not like having them unassociated, then you can download and merge the JPG and JPEG options in the tutorial below to restore their default associations.

Default File Type Associations - Restore

Hope this helps,

Read other 3 answers


I work with film editing and need to have several media players. I wonder if it is possible to associate file type to different programs, depending on the file path. I.e. every file in path E:\ is opened in program1 by default, and program2 takes care of the rest of the paths. Today I use right click and "open with", which gets kind of annoying.

Thank you!

Read other answers

I like IrfanView (a viewer program) as my main viewer program. I have a small gif file that looks bad running it with Irfanview, but looks good running it with QuickTime viewer.

Is it possible to associate QuickTime to just that one single file only? Because if I change that files Properties to QuickTime, windows changes all my IrfanView's files over to QuickTime at the same time. I want to keep IrfanView as my main viewer program to open gifs, jpegs, etc. but associate that one file to QuickTime (the one file that runs bad on IrfanView).

Is this possible or do I have to use "open with" each time to view it with QuickTime.

I prefer IrfanView over QuickTime to view all my other files. I don't use QuickTime at all, except to make that one GIF file play correctly. IrfanView can run that file, but it looks a bit distorted.

A:Associate viewer program to a particular file only

Hello Caslon,

Yes, you sure can. You could use "Open with" with a .gif file to do so, but make sure that you have the Always use the selected program to open this kind of file box unchecked. The tutorial below can help show you how to.

Open With - Change Default Program

Hope this helps,

Read other 6 answers

I need to change a zip file to an epub file. I have heard this can be done, but when I add the .epub after the file name, I notice the file is still actually zip type file when I right click properties. This is causing a problem when I try to open it in in different ebook reader programs.

I know there is a way to change a file's actual file type, but I don't know how. Perhaps there is a software or I need to go into the registry?

I can do this either with windows 7 or XP home, because I have two computers. So help on either operating system would be great?

As a related question, I am wondering does changing a file's icon type actually change the file type or just the icon?

A:How do I change a file's file type (not only file association)?

Hi awd and welcome to Seven Forums.

I take it that your zip file is an e-book. Changing the extension does nothing to change the format of the data. If you have need to convert an e-book from one format to another try Calibre. In addition to managing e-books it allows you to convert from one form to another. calibre - E-book management

Read other 8 answers

Hi all,

My first thread here

What im trying to do seems simple in theory...that is if you know what to do.

Im using a webex called Zefyr. im using it to mail people. In this webex i have contacts listed with thier email addresses. NOW! when i click on the email address it opens a, "NEW EMAIL" window in the webex via internet explorer. what i want it to do is, when i click on the address i want it to open a, "NEW EMAIL" window in windows mail instead....

any help will be greatly appreciated

Read other answers

Vista won't let me associate file type jpg with a program other than their defaults. I click on browse and select the program (PaintShop Pro), but when I return it only lets me pick one of the original defaults, not the one I browsed to. If I don't pick one of the defaults, the "OK" won't activate and I have to cancel.
What's up with this? Thanks.

A:Won't associate file type

Check also Control Panel>>Default Programs Default Programs
or use external tool FileTypesMan - Alternative to 'File Types' manager of Windows

Read other 6 answers

I accidentally associated the .lnk (shortcut) extension with a program. Now all my desktop icons open that program (Picassa). I tried to change it back to Unknown Program using "set associations - change programs" but it does not give the option to change it to "Unknown Association"

Can anyone help with this?

A:Associate a file type

Hello Fort5, and welcome to Seven Forums.

You can download and merge the lnk (LNK) in the tutorial below to see if it may be able to help with this after restarting the computer. It will restore the default associations for shortcuts.

Default File Type Associations - Restore

Hope this helps,

Read other 3 answers


I am unfamiliar with the windows installer of a piece of software I downloaded. The installer's file type is: .nsis

Win7 is asking me to identify the prog that will run the file type.

From search, I have learned that the .nsis stands for Nullable Install system script (?).

However, I am not sure what to do next. I suppose I have to download and install something, that I can associate with this file type. I actually downloaded the NSIS software. But all it did was compile the script.

What I am looking for is for something that will install the first software I downloaded.

Can someone help?


A:what can i associate an .nsis file type with

What is the software?

Read other 2 answers

This may have been a temporary glitch, but yesterday I opened File Explorer to get a PDF file I had stored away. I found the file, but the Adobe logo that normally appears next to it (I used the Details view) was missing, replaced by a blank white rectangle, and when I double-clicked the filename, nothing happened. I had been viewing PDF files earlier in the day without problems, but suddenly, it wouldn't work.

I rebooted the machine and the file type was set right, but I have a feeling I haven't seen the last of this problem. I didn't look specifically for the problem with other apps, but I have a mix of PDF and other types in the root Documents folder, and it seems to me that all the other files in that view were missing app logos, as well.

Has anyone else seen this?

Read other answers

Trying to change some file associations, so following the standard procedure:

Default Programs
Associate a file type or protocol with a program

When it tries to load the file extension list ('Loading....'), I get the messages:

Windows explorer has stopped working
Windows is checking for a solution to the problem
Windows Explorer is restarting

Then the control panel window closes.

1. This has never worked on my PC (Dell OptiPlex 780, 7 pro 32 bit)
2. I have Googled this problem many times and found many people have had it since about 2009.
3. I have never found a thread anywhere that solves it.

Many threads suggest causes like games programs, recent changes, viruses, Windows repair, AV and firewalls etc.
None of these apply to me, and none of these discussions have ever arrived at a solution anyway - well except one that suggested removing SOA800.DLL from MS Office. My MS Office didn't have SOA800.DLL, but did have SOA.DLL which I removed and rebooted. It didn't change anything!


A:Default Programs/Associate a file type or protocol with a program BUG

Welcome to Seven Forums GrahamS1.

I apparently is some Dell issue, it works for my system.

You can try using this tutorial for the file association you want to change.
Default File Type Associations - Restore

I will also contact SandeepP who is a Dell person.

Read other 7 answers

I downloaded an upgrade to DxO Pro Optics. The old one, v6, was buggy so I upgraded to v7.1, which is in the v7 folder.

I can't associate my raw Canon files to DxO v7.1, probably because in regedit it says:

HKEY_CLASSES_ROOT\Applications\DxOOpticsPro.exe\shell\open\command it reads, under Data: "C\Program FIles(x86)\DxO Optics Pro v6\DxOOpticsPro.exe" ""1" [the extra quotation mark should be a percentage symbol (ie before the numeral one]

I thought I could change the v6 to v7 but I'm not allowed to.

I just open and close these things because I only know enough to ruin my computer.

Please help?

A:Unable to associate file type to upgraded version of a program

Hello pxfragonard,

Does the DxO v7.1 version have a separate folder of it's own in Program Files (x86) or Program Files instead of in the original DxO Optics Pro v6 folder? If so, you could use Open With to select the .exe file for the DxO v7.1 version to associate to the file type.

Are you able to install the DxO v7.1 version separately instead of upgrading from the older version? If so, you could uninstall them, then install the new version to be able to.

Hope this helps for now,

Read other 9 answers

Recently developed problem (perhaps since a new clean install of everything on SSD):

- Opera 11.62/12b or Waterfox 12 browsers, email client (Sylpheed) set as Windows default, set as Opera and Waterfox mailto default with the following command/parameter
C:\Program Files (x86)\Sylpheed\sylpheed.exe --compose mailto:%t

- If email client is closed, mailto link opens client and compose window with address (good)
- If email client is open and command used without parameter, focus shifts to email client (no compose window) - that's as it should
- If email client is open, mailto link --> nothing happens

The latter is the problem.

In addition, right now mailto is not showing in "Default Programs > Associate a file type or protocol." Can't figure out why. However, when it did, setting Sylpheed as default mailto had no effect on the main problem.

Any ideas? thanks,

A:Mailto missing from registry (& Associate File Type or Protocol List)

Since my OP, I've got the registry settings such that the external email client, Sylpheed, is seen as the default email client and mailto program by Windows, as well by Opera, FF and IE9 browsers. What's really odd now is that it take numerous repeated quick mouse clicks with any of those browsers to get a compose window to open in the condition where Sylpheed is already running. I've got Windows set to single-click open, but that doesn't make any difference with mailto links - and only mailto links. Not sure what to make of it, since it didn't use to act this way. Any ideas? Sylpheed is text-based if that is at all relevant.

(example mailto links: http://mc-computing.com/HTML_Examples/MailTo.htm)

Read other 1 answers

in Win XP or earlier, we can change / delete file association in File type of "Folder Option". but found disappeared since Vista.Can anyone tell me where to find the same function?thankslolojack

A:how to delete file association with an unwanted program (i don't want it associate with any program?)

I take ".dat" for example.Go to HKEY_CLASSES_ROOT in the registry.Search ".DAT" under this key.Click on this key and delete the (Default) value.Aski.
MVP Desktop Experience

Read other 26 answers

Have IE8. I had both both Adobe Reader and Foxit Reader installed, but I removed Foxit. I lost the association for pdf file types. I was able to re-establish the association to adobe in Windows, but in IE there is no association. When I download a pdf it is not recognized. Anyone know how to add that?


Read other answers

Hi everybody
I have Virtual CD installed on my computer and it was handling .iso files and a very useful feature it had, it caused some options to appear in the context menu of the file (i.e. right clicking on the file) to be able to directly insert the .iso file into a virtual drive.
But then I installed WinRAR and regretfully (!!!) I chose WinRAR to associate with .iso files ... and I lost those useful options in the context menu.
Can anybody help me to have those options again?
Thank you ...

A:ISO File Type Association?

Right click on the iso file and if the program is in the default area pick it if not just click on browse and go where the program is istalled and make sure the box is checked.

Read other 4 answers

What a difference a touchpad makes. While exploring a “.bin” file before deleting it forever, I managed to associate all “.bin” files with Notepad!

Having right-clicked on the file icon, selecting “Open With” and “Choose Program…”, (with the box for “Always use the selected program to open this kind of file” checked and while Notepad was highlighted in the list of programs), I clicked on “Ok” rather than “Cancel”.

Now, when right-clicking on the file icon, and selecting “Open With”, Notepad appears as an option along with “Choose Program…”, but there’s no obvious way to undo the association.

Information found on the Microsoft Knowledge Base (which applies to ME, not to XP which is on this computer), seem to indicate a registry edit is necessary. Never done that. Any suggestions? I’d really appreciate some help!

A:Unwanted File Type Association

Open up Windows Explorer.
Click on Tools
Click on Folder Options
Click on File Types.

Delete the association you dont want.

Read other 3 answers

Everytime I install Win8 , the default file association all goes to Metro UI associated. I won't use Metro UI at all , instead use the Desktop. So everytime I've go to the [Control Panel] ... [Programs] ... [Make a file type always open in a specific program]
It's very annoying. Is there a simple way to let me change all the files association type such as by .reg. I've tried regshot program to get certain file association change registry then import it to the registry , but with fail. As it said program is in use , forbitten ...
I can't thinks of a simple way to solve this program even in the safe mode.

A:Win8 File Association Type

You would need to import the reg file into the hive from outside of windows.

What did regshot give you as a.reg file?

Read other 18 answers

I work at a company and we just went through an internal network change which required a transfer of my user settings to a new account. Everything seemed fine after the switch but now I can't set my .txt default program. It used to be notepad++. It's now set to "Not selected" and if I change it, it goes right back to "Not selected". This is very annoying because I do a lot of text editing.

I've tried setting the default program from Default Programs -> Set Associations and from the right-click context menu. I'm running the latest Windows 8.1.

Any ideas how to fix this?

A:.txt file type association won't stick

Does it stick if you set it to notepad? Or it just won't keep any setting at all?

Read other 13 answers

Ok basically, due to someone screwing around instead of waiting for me, I
have a file type association issue.

The type of file is .UMOD
For those that don't know its a self-extracting installer for the Unreal
series of games (Unreal, Unreal Tournament, etc).

Now, when they were screwing around I hadn't yet reinstalled my Unreal
games, so obviously they wouldnt self-extract. So, you all know what windows
does with unrecognized file types... They associated it with random things
and now after I have installed the game, they obviously don't work properly
because Windows is trying to open them with other programs. I even tried
setting them to the games .exe file and it didn't change anything (but I
didn't expect that to help).

Basically my question is how can I dis-associate the file type with all
things, rather, resetting its association to nothing at all? Would I have to
manually edit parts of the registry? If so, where and how?

All help is appreciated.

A:Solved: File Type Association help

Folder Options. Delete the file type.

Read other 3 answers

On my new Windows 8 machine, every time I put an audio CD into the disk drive, the Power DVD program starts. THis is MOST ANNOYING! I want audio CDs to launch Windows Media Player so that I can rip them to the hard drive. If I go to Control Panel -> Default Programs -> Associate a File Type with a Program, there is NO LISTING in there for .cda files, which is what compact disc audio files are. Does anyone know how to resolve this problem?

Thanks for any and all advice!

A:Change File Type Association?

Control Panel - Auto Play - CD's - Audio CD

AutoPlay - Turn On or Off in Windows 8

I think that should take care of it. I think the Power DVD is the installed default.

Read other 2 answers

I have accidentally associated a number of file types with Notepad. I'm trying to delete their association so they go back to having no program that they open with, but Windows does not seem to have this ability integrated into Default Programs > Set Associations. I tried deleting the registry values for the file type in HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts, but that didn't work. Any other ideas?

A:Delete file type association?

Hello Mitch,

You should be able to unassociated the file extensions using an option in the tutorial below.

File Extension Type - Unassociate

Hope this helps.

Read other 2 answers

javascript .js files are associtated with WordPad.exe. ...should be Notepad.exe

.js file extension is missing in the Default Programs-Associate file type....

How can I add and extension(.js) to the list of extensions and protocols?

A:File type Association (.exe, .jpg, ...) Add extension?

It's in mine as

.js | JScript Script File | Microsoft Windows Based Script Host

Here. Try to import it or merge. Then change to your liking.

Read other 7 answers

I don't know if this is the correct location for this topic. Please bear with me, I'm new.

So I have this program on my computer. It isn't installed per se, but it still runs files. With other programs like it, I can set it to use files, but this one I can't. Now let me tell you the things I've tried.

I've tried the regular - Right click - Open With - Choose Default Program - NO$GBA. And that didn't work. When I look at the properties of the file, it says that it opens with an unknown application. Tried to change it from the properties window which failed.

I tried Control Panel - Default Programs - Associate blah blah. Didn't work; same problem.

Here's the interesting part that really confused me. I tried opening the Command Prompt as an admin. Then using the ASSOC command. When I tried to associate the file with the program, it said it accomplished that. But the same problem still occurs. And when I use the Command Prompt to look at what program the file opens with, it says NO$GBA. So I'm all confused. Any suggestions?

Legal issues: I have the game irl that I'm trying to run on the emulator.

Others: I'm running Windows Vista 64bit.

Thanks for the help.

A:[Problem] File type association

Read other 7 answers

Hey all

So I just got a new Win8.1 laptop, and after installing WinDBG and updating my how to thread, I ran into a small problem.

When I try to associate dump files with WinDBG I get the following error;
Attachment 325909
Note: the .dmp file is just a random one I grabbed from the top thread to test if everything worked.

I tried to associate the file type via the "path to winDBG" -AI way, and when that failed I went via the control panel. I tried virtually every option, but I just can't get it to work

It looks like I somehow messed up and it sees "%1" as the program that needs to open the .dmp files instead of WinDBG, or something like that. And, when I look at the file type association, I see that whilst I have a 64bit laptop, WinDBG installed itself in the 32Bit Prog Files folder.. Could that be the issue?

Oh well, I can't seem to find the cause or solve it, so if someone has a clue, by all means share it

A:WinDBG 8.1 file type association problem.

Hi Nommy. I think you will get a good answer in eightforums. Here most of us use seven.

Read other 1 answers

(You can try this yourself if Firefox is your default browser. Go ahead--it's mildly entertaining)

So Windows XP allows you to have a "Links" toolbar on your tasbar (which is created from the links folder in your IE favorites).

The IE Links folder is really a set of Internet Shortcut files in C:\Documents and Settings\<user>\Favorites\Links

I have Firefox set as my default browser and if I open this folder and double-click on one of these shortcuts, it does open in Firefox. However, if I enable the Links toolbar on the Windows taskbar, opening a link still opens it in IE for some bizarre reason.

You can't right-click an Internet Shortcut file and choose "Open With" because it's just not there. So I went into Folder Options and the "Internet Shortcut" file type has the "change" button (to change the default application with which to open it) grayed out. I tried going into the advanced settings and changing the open application from rundll32.exe to firefox.exe. Links still open in IE from the toolbar.

To test if this is something strange with the Links folder, I even made a new folder on my desktop, put a couple internet shortcuts in, and added the folder as a new toolbar to the taskbar. Amazingly, they open in IE even though they open in Firefox when opening the files from Windows Explorer.

Now here's the really strange part. Up until this point, the toolbar I've added doesn't actually display any bookmarks dire... Read more

A:Really strange IE/Firefox file type association problem

I have gone through the steps described and have found that, in all cases, shortcuts always open Firefox. The only peculiarity is that icons in the Taskbar's 'Links toolbar' have IE icons rather than Firefox ones. This doesn't stop them opening in Firefox though.

So it seems that there must be a default in need of setting somewhere. Have a read of this page to see if it helps:


Note that at the top of the page a third party utility is mentioned. The link ultimately leads here:


Firefox isn't specifically mentioned in the options (see the screenshot) but it looks possible to browse to it. If Mozilla has linked to it, it seems it would be OK for the job.

EDIT Another thing you could try (if not done already) is to set IE as the default and then set it back to Firefox again. Perhaps that might reset/set associations.

Read other 6 answers

Hi, I have been quite playing with some file with an unknown extensions like .ctp for a cakePhp file. Then I accidentally choose to open it using shell32.dll, so after that whenever i try to open the file it giving me an error. how can i restore the default association type of the file which is the windows shell common dll?

A:Windows Shell Common Dll Restore file type association restore.

Hello Marie, and welcome to Seven Forums.

If you like, you could do a system restore using a restore point (if available) dated before this happened to undo and fix it.

Hope this helps,

Read other 1 answers

I have MS Windows 7 Ultimate x64 fully updated.  I did a clean install of Media Player Classic - Home Cinema 1.4.2499 x64.
There are two ways to get to the "Open with" menu.  I can right click a file and choose "Open with...".  Alternatively, I can open the Control Panel, click "Default Programs", click "Associate a file type or protocol with a program", select the
file type or protocol, and click "Choose program...".
Media Player Classic - Home Cinema does not appear in the "Open with" menu.  Therefore, I click "Browse..." and browse to the correct directory and select "mpc-hc64.exe".  However, Media Player Classic - Home Cinema still does not appear in the
"Open with" menu.
How do I change the file type association to Media Player Classic - Home Cinema?

A:Cannot Change File Type Association to Media Player Classic - Home Cinema

In the Open with menu, select Choose default program... , and click
Browse... to select the mpc-hc64.exe file again. After that, Media Player Classic should show up in the
Open with menu, although you may have to repeat this a few times before it actually shows up.Tim De Baets

Read other 3 answers

Long story short, I used Handbrake to add soft subtitles to some video clips and the finished result are "unknown file types" which I have to open with vlc every time, the "Always use the selected program to open this kind of file box is greyed out.

The first file is a .m4v file and Handbrake also had the same output setting for the other files, but they're considered unknown by Windows. Pictured.

Anyone know of a fix?

A:How do I associate an "unknown file type" to a program?

Try renaming one of the .m4v files to .mp4 and see what that does.
Read more at M4V File Extension - Open .M4V Files

Read other 3 answers

I'd like my photos to open with Internet Explorer like they used to. Right now they open with PSE 2 and that's a pain in the gluteus maximus. How do I change the file association to make that happen?

A:File association question

right click on a photo and choose the "Open With" option. A menu of programs will appear. Make sure the box marked "Always use this program" is checked. Scroll down to Internet Explorer...click okay.

Read other 1 answers

I created a project in audacity 1.2, then saved it twice under a different name in diffeent places to make sure I have a back up. Trouble is, I have the project file which has the audacity logo but when I open it it says that it cannot find the data file specified. That is because the data file has a different name.
It's long story: question is how do I associate the data file, which has all the information with project file that is empty now. They cannot find each other as they have a different name. Any tricks?

A:Audacity Project file and data file: how to associate them

Just a guess, but try moving the backup of your project file to the same folder that the original was in and then renaming it to the name of the original. Also make sure that the data file is in its original folder with its original name.



Read other 2 answers

I opened a PDF file in notepad then in Word, now all PDF in my windows explorer shows a Word-like icon and file opens automatically in word.  I checked folder options and rebooted the machine, but it still shows that icon.  

How can I get the PDF file type icon back and file opens in Adobe automatically?
Thanks for any tips!

A:How can I get PDF file type icon back in Windows Explorer after I opend the file in Notepad?

Found it -
Control Panel > Default Program OR  Start >Default Program (if the shortcut already there) > select PDF file type and change default file association > pick Adobe 

Read other 0 answers

Hi all,

I have been hammered by several viruses. The result of the attack is that Windows Explorer now shows the file type for an exe file to be a file folder instead of an application. I assume there is something not right in the registry but I do not know where to start looking. Can anyone help? Thanks very much.

A:Windows Explorer Is Defaulting "file Folder" File Type For Registration

I'm not sure this is what you are talking about, but you can change the icon:
Tools -> Folder options -> File types
Mark the file and press "advanced".

*edit stupid mouse

Read other 4 answers

I'm in the midst of a weeks-long project to get every media type I can think of associated with the program that I prefer for opening it. (Let's just say it's tedious and get to the problem I'm having!) I've been using the windows "Default Programs" program, as well as "right click-->open with" on literally hundreds of file types and over a dozen programs, without issue. However, for some reason I can't get file types to associate with Windows Media Player. I can get those same file types to associate with other media players (which unfortunately don't open them properly), but not WMP.

When I open the list of all file types in Default Programs, I double-click on the file type I want; WMP isn't in the resulting list, so I go to "look for another app on this PC" and go to program files\windows media player\wmplayer.exe. When I select this exe, it goes back to the list of all file types, but the list doesn't refresh as it does when I associate a file type successfully to another program, and the file type is still unassociated. I've tried using the wmplayer.exe under the "program files (x86)" folder as well, with the same issue. When I right click on a file of that file type in Windows Explorer, I go through the same process; the file type isn't associated with WMP, and WMP doesn't open to open the file. I can open WMP and drag-and-drop the file into the window with no issues.

Anyone have any clue what could be going on here? Every ot... Read more

A:Unable to associate file types with Windows Media Player?!

Ah! 20 minutes after asking I finally found the problem. Windows Media Player was unchecked in "Program Access and Computer Defaults." Once I checked it, all was okay again.

Windows Media Player - Restore or Remove from Default Programs

Read other 1 answers

XP Home SP2
Can I totally remove a file association so that type of file once again has no association set? I set some dat files to open with WMP which was fine for my purposes then but later changed them to mpeg files and so don't need to keep that dat file association anymore. I want to get the dat files back to having no particular program assigned to open them. All I can do now is change it to other programs which isn't what I want. Any way to start with a clean slate again? (I guess I could change the dat icon so I can tell what they are if there's not a way to unassociate them.) Dat files have always kind of spooked me, I want to be sure people don't click them thinking they'll play a vcd.

A:Solved: Any way to totally erase a file association, leaving no association?

Go into file association and delete the one you want to get rid of. It's under folder options/file types in control panel or under tools in my computer.

Read other 2 answers

Hello, hope this is the right place. But for some reason all my winrar archive started showing as a white piece of paper with the top right hand corner folded in, and in the middle the winrar archive icon shows. Ive never had a problem like this before and was wondering how do i fix this problem back up so it shows the winrar icon not with a white piece of paper behind it. Ive got AVG Antivurs Free version edition 9 and I've got malwarebytes anti malware, so i have no idea what could be causing the problem. I have attached a screenshot of what i mean. Note:I have already tried file association and associating it to a different file and then re associating it. Also have tried uninstalling winrar and then installing it again. Thank you Much appreciated Dazz

A:File icon incorrect file association correct

Click Start, Run, Regedit.

Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Classes and scroll down until you find RAR or WinRar (Not sure as I don't have it); whichever it is, it should show the (default) entry as RaR File (you could also use Find > RAR File).

It should also have a subkey of DefaultIcon. Click on this and it'll show the path where it gets the icon from. The last number in the path, after5 the comma, is the icon selected from that file. The normal path should be pointing to the Winrar.exe file, and the number something other than 0.

Export the key first, just in case you need to restore it, and change the number to 0. Should change the icon shown for Winrar archive to the main one.

If not, report back on anything that deviates from the above, including a screenshot of the registry keys.


Read other 15 answers

I accidentally set the default file format for a dds (DirectDraw Surface) to Windows shell common. It tries to execute it but obviously fails giving this error:

(name of file).dds is not a valid Win32 application.

I've tried everything. Modified registry keys, use slightly different solutions, but I just can't get it working. Does anyone have a fix for this?

A:Set file association for a file (dds) to Shell Common that execs it!

Hello and welcome SA mate did you by any chance back up the registry before now? I always do after an install so at times like this one can just restore the darn thing to the Windows default.
Registry - Backup and Restore

If you let me know what registry entries you are looking at I can possibly see what mine are and let you know what the default entry is so you can start rom scratch again.

Read other 9 answers

Hi folks.got a small prob.turned on comp this evening and virtually all the icons on my desktop were showing the windows icon for unrecognized,(thank god mozilla still works or i wouldnt be here...).upon further investigation it appears that windows xp pro service pack 2 no longer knows what .exe files are.ive tried last known good,directory services repair,recovery console,but nothing and i cant get sys restore to work.i have both a hardware and software firewall,and up to date anti-virus(norton internet security 2005)so i dont think its a virus.the likes of ms word,excel,powerpoint etc i can get to work by right click and "open with" as their icons are listed,however there is a lot of stuff on the drive that aint listed. Anyone got any thoughts on this?Any help offered would be gratefully received.

windows xp pro service pack 2
amd athlon 3200 xp

A:Windows XP+.Exe File Association

It could be a corruption in this registry key


To open .exe files

HKEY_CLASSES_ROOT\exefile\shell\open\command should be set to

"%1" %*

although if the icon isn't recognised then there could be other problems with the key.

If I was you I would open regedit, go to


right click on exefile and export.
Then open the the file with notepad and copy and paste the info.

If regedit won't open (it is a .exe file) you can rename it to regedit.com, then open it.

By the way, this is normally caused by viruses

Read other 1 answers

Hello, I use Notepad++ to edit Python files which have the file extension .py such as "sample.py"

I would like to set Notepad++ as the default program to open .py files.

When I open a .py file I get the popup asking me which file I want to use to open. But I do not get the choice to set the default program to open this extension.

When I go to Settings|Choose Default Apps By File Type the .py extension is not listed.

Looking through the registry I see that there is no .py handler.

Q: What is the method to manually add a file extension and associate it with a program?


A:File extension not in file association list

hey I figured it out!

1) Settings - Indexing Options
2) Advanced button
3) File Types tab
4) Add New Extension to List box, type in extension (without a period) such as "py"
5) Click OK and Close
6) Settings - Chose a default app for each type of file
7) Scroll down to file extesion
8) click Choose a Default
9) select a program
10) The first time you open a file with this new association, you will get a popup asking you which program to use to open this file type. Your default program will already be selected and a checkbox with Always use the program to open this type of file will already be selected as well, just click the program type. After this you are golden.
11) Damn I spent 3 hours on this! Ugh!

Read other 2 answers

for example I download a ntw3 mod file and the file is a windows media player file how do stop this from happening

Read other answers

I am running VISTA and know that I can click on "Control Panel", then click on "Default Programs", and change the file association on various files.
My daughter is running XP and getting those dreaded messages to associate a file type with a program. In this case she cant open a JPG E-Mail attachment.
How do make the necessary changes to make this happen running XP?
I told her that you folks would help and this would be her Christmas present.
Please help!!

A:Cant open PDF file,file association problem

Read other 7 answers

So lately i found this nifty lil Twitter app that comes with Windows 10 But when i click a tweet with a vine retweet or such it gives me an error saying "Unsupported Video Type Invalid File Type" Has anyone been using the twitter app lately and are getting the same error?

Read other answers

I just finished doing an update to Windows 10 (a long one!) and of course Windows put all the file associations to its own [email protected] apps, including for the PDF file. I wish to have this file associated with PDF-XChange, so I went to the Preferences in that app to do this - but Windows 10 gives the message "An app caused a problem with the default app settings for .pdf files, so it was reset to Microsoft Edge". So now not only does Micro$oft overwrite file associations, but it won't allow them to be set?

A:Windows 10 won't allow me to reset file association!

Hi, since Win 8, you can't set preferences from within a program. Very few programs warn of this or have been updated to reflect it.

You can set defaults in Settings, in the control panel, Defaults, and by using Open With to select a program provided you tick the box at the bottom to Always use this app.

I assume your Windows update was to 10586 - but that came out in November. That's the last one that had the effect of resetting associations.

Read other 2 answers


I was trying to open a particular file in Windows Explorer. I was trying to open the file that had no association with it. One of the the programs I used was Winzip. The file I was trying to open was something like kp.002 It did not open.The problem I have now is that other files I have with # .002 open with Winzip now. My question how do I get those .002 files back to "No Association" instead of the winzip association. I need the no association sow I can re-join them since the are split files.

A:Windows Explorer File Association

Click on "My Computer" then click Tools/Folder Options/File Types and delete the association in there.

Read other 1 answers

File association error in windows 7 ? Please help ?

I have this strange problem. It started when all of my desktop icons changed to Adobe? I uninstalled Adobe from program and features options and now its just showing white desktop icons. If I click on it, just ask me which program I want to use to open this application. I tried to research it on internet , tried few steps but nothing worked out. Some software companies claim that their software can fix the problem but I have to do all the applications one by one. I have never tried some of it but I guess its really hard and time consuming to do it this way.

Tried some links below already

already tried to delete iconcache too but did?t help either

I don?t want to reinstall my OS , please help me out for this.

If anybody had this problem in past please let me know how did you resolve it .. if you need anymore explanation please let me know

Thanks in advance


A:File association error in windows 7 ? Please help ?

Hi have you tried system restore to a date before you installed adobe

Read other 7 answers

I am having a problem with the windows 7 file association problem. I recently installed a chess game by the name of Kasparov chess and on the start menu I typed the name Kasparov in order to bring it up on the start menu and I found two shortcuts of the same name. So, I clicked one and a window pop up saying that the windows can't find the specific program for this shortcut, so I manually opened the file browser of that window and associated the shortcut with the Kasparov chess game as its default program and when I click applied, all of the rest of the shortcuts of the other programs and even the programs that I pinned on the start menu also got associated with the Kasparov chess. Any programs shortcut that I clicked, the windows open the Kasparov chess program as its default associated program. I want to undo the default associated program and bring my system back to normal. I tried the windows 7 registry editor in order to find the entry but I don't know which one. Would someone please help me on that one oh yeah! another thing, I've disabled the system restore for safety purpose so no system restores for me now would please someone please help me without saying to reinstall my windows

A:Windows 7 file association problem

Just use a system restore to a date and time behind when you configured the association
Very Sorry. Missed that about system restore being disabled. Why people do that I can't imagine!!!

Read other 6 answers