There is a Bug that cashes windows explorer to crash, this occurs when windows is trying to create thumbnails of the Videos in the directory you are accessing. If you're having the Windows XP Explorer broken AVI crashing bug, here are three possible solutions:

1: Remove this registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{87D62D94-71B3-4b9a-9489-5FE6850DC73E}\InProcServer32

Note online says: "This will prevent Explorer from loading shmedia.dll in response to file property queries on these files. This will not effect your ability to play files, get file attributes, or even view thumbnails. Say goodbye to all explorer.exe 100% CPU issues."

2: Remove this registry key:

"Goto HKEY_CLASSES_ROOT\SystemFileAssociations\.avi\shellex\PropertyHandler

Delete the "Default" value which should be "{87D62D94-71B3-4b9a-9489-5FE6850DC73E}"

3: Unregister SHMEDIA.DLL:

%WINDIR\SYSTEM32\REGSVR32 /U SHMEDIA.DLL

(Side effect: No AVI thumbnails or Windows Image Viewer or other things I never use.)

To re-register:

%WINDIR\SYSTEM32\REGSVR32 SHMEDIA.DLL

Xeetec recommends method 3.