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registering extension in folder options

Discussion in 'Windows XP' started by okeee, Mar 9, 2012.

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  1. okeee

    okeee Thread Starter

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    win cant properly register an extension in folder options > extensions list anymore.
    in 'folder options' i deleted the .avi extension, because it didnt properly register with a program. but the .avi extension doesnt appear back in the list of extensions ! even when it is manually set in the list, it is automatically removed again when i open the extensions list. i can assign the .avi extension to some other program than windows media player, but i cant change the icon anymore.
     
  2. throoper

    throoper Trusted Advisor (deceased)

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    Quick thing to try is right click an AVI>Open With>Choose Program.
    Select WMP from the list (or browse to it if it's not on the list). Place a check by the line "Always use the selected program to open this type of file" and OK.
     
  3. okeee

    okeee Thread Starter

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    tried it, it is still not in the extensions list
     
  4. throoper

    throoper Trusted Advisor (deceased)

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    Take a look at the value for AVI files in the Registry.

    First set a System Restore Point as a safety measure before doing anything involving the Registry.

    Click Start>Run>type regedit>OK.
    In the left pane of the Registry Editor, expand the keys to find HKEY_CLASSES_ROOT\.avi and click on .avi to show it's values in the right pane.
    What do you show in the Data column for (Default)? It should be avifile.
     
  5. okeee

    okeee Thread Starter

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    no, it is set:
    type = REG_SZ
     
  6. throoper

    throoper Trusted Advisor (deceased)

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    The type is correct. You should also see a Data column to the right of that with avifile.
     

    Attached Files:

    • avi.png
      avi.png
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  7. okeee

    okeee Thread Starter

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    no, only 'type = REG_SZ', so no value under 'data' with 'avifile'
    also, no 'content type', 'm2p.last', 'perceived type' either.
     
  8. throoper

    throoper Trusted Advisor (deceased)

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    Scroll down in the left pane to the avifile key to make sure it exists.
    If it's there, I'll post a reg fix for the avi key.
     
  9. okeee

    okeee Thread Starter

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    well in registry, under '.avi' there was only another key, 'persistenthandler'.
    there is another 'AVIFile key' in hkey_classes_root.
    the value of it with 'type = REG_SZ', is 'videoclip'
     
  10. throoper

    throoper Trusted Advisor (deceased)

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    I've attached a zip of the avi defaults. Download this to your desktop.

    First thing is to backup the HKEY_CLASSES_ROOT\.avi key.
    To do that, in the left pane of Registry Editor, right click the avi key and select Export on the menu.
    Name it Oldavi and save it to your desktop. This is a safety precaution so you can restore the key to it's current values if needed.

    Unzip the avi fix and double click the avi.reg file.
    OK the Merge request and reboot your computer.

    See if that straightens out the AVI association.
     

    Attached Files:

    • avi.zip
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  11. okeee

    okeee Thread Starter

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    it worked great, thanks
     
  12. throoper

    throoper Trusted Advisor (deceased)

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    You're welcome. (y)
    If you're all set, you can mark your thread solved with the button at the top of your first post.
     
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