how do you "un-associate" a file type?

[guppie]

I made a temporary file type ".AV" cuz I was messing around with some files and then I accidentally clicked on it and opened that file type with Adobe Acrobat Reader and I didn't realize that little boxed was checked "use everytime for this file type" or whatever it says, you know what I mean? Anyway, now all my files of ".AV" have the Adobe Acrobat icon and I just want to un-associate that file type with that program. Actually, I just want it to be the way it was and have no program associated with .AV files where the icon was that generic windows icon... Can someone please help me out? Its annoying me!

Thanks

[Microsoft]

start - programs - windows explorer - tools - folder options - file types - (find what your looking for) - advanced

then change it

[typhoonmike]

Can also hold down the shift key while you right click on it. That will allow you the option to choose Open with... and you can then change it.

Blah I know it works. It's either control or shift while you right click on it but can't seem to get it to work from this computer.

[Kingslayer]

You hold down the left shift and right click. But that won't change the file type associations. If you want to say, change all your .jpg files to open with IE instead oh Photoshop, then the easiest way of doing this is just like Microsoft perscribed.

[turd]

try this Dclick my computer|tools|folder options|file types|the associated file you want to change| advanced | Open | Set Default

If that will not work, just list your OS and what the type file that you messed up and I or someone will provide you with the info on how to navigate over to the correct opening program from within the same sequence as above excepting you skip the set default click and go to |Edit to do it.

[guppie]

I tried both of those methods but no dice. The messed up thing about it tis that .AV doesn't show up in my file types... Here's what happened. I had .AVI files and chagned them to .AV so I could have the .AVI file and a copy in the same directory while I did some editing. Also, just in case the .AVI file got screwed up, I had a backup copy of it (ABC.AVI and ABC.AV). All my .AV files got associated with Adobe Acrobat, cuz I accidentally opened the .AV file with it and the box was checked to "always use program for this file type". I know there isn't any harm with this, cuz .AV files are useless an unexecuteable, but it kinda errks me! If you want, try it yourself and see if you know how to UNDO it... Its strange, cuz the .AV extension ins't to be found in the file types folder options.

Ugghh!

[Microsoft]

only way to fix it then is good ole reformat

[turd]

hey you could try to quick fix it by uninstalling and then reinstalling windows media player, i think that it will reset all your associations to windows default, without your permission of course
but hey
here is the skinny on changing associations from the command line in 4.0.i know i can bring it up and view, but have yet to need to change, you seem capable. this should also work in 2k,

i would first check and see what comes up for avi. then change/set it and check for your .av and delete it. this is good stuff i hope:

The Assoc command can be run only from a command prompt.

NOTE: When you use the Assoc command, the changes you make are immediately written to the Software registry file.



To display a list of file extensions and their associations, type assoc at a command prompt, and then press ENTER.


To display the association for a specific file extension, type assoc .<xxx> at a command prompt, and then press ENTER, where <xxx> is the file extension whose association you want to view.

To change the association for a specific file extension, type assoc .<xxx>=<file type> at a command prompt, and then press ENTER, where <xxx> is the file extension whose association you want to change, and <file type> is the program, dynamic data exchange (DDE), or OLE object you want to associate with the file extension.


To delete the association for a specific file extension, type assoc .<xxx>= at a command prompt, and then press ENTER, where <xxx> is the file extension you want to delete.

NOTE: You must type the trailing space after the equal sign (=). If you do not, the association is not deleted and you receive the following error message:

File association not found for extension .<xxx>



THE FIX) YOU WANT: .avi=avifile

for .av : File associations not found for

[guppie]

Shoot, I've tried everything... By the way, the "assoc" thing at the command prompt was a really good idea, and it should have worked, but it didn't. It looks as though it accepts that command "assoc .av= " which doesn't give you any error message, but when I look in my folders, they are still associated with Adobe. I've even uninstalled Adobe and all it did was change the file association to MS WordPad. Pretty strange, huh? Then I even went into the registry and deleted the ".av" file extension and that still didn't do anything! WTF? Damn, Windows can be really stubborn, huh? I guess I'll just leave the damn thing the way it is. I know there's no harm, but its no the way its "supposed" to be! hehehehehe I'm sure all your guys know what I'm referring to when you know something on your system just isn't right, even though its benign. There has to be a way, though...

Thanks for your help guys!