Question : Problem: Need to have MOV files show up as thumbnails in Explorer in XP

Does anyone know what codec I need to have .MOV files show as a thumbnail in Windows XP explorer or if there is some setting I can change?  I could find a codec for it in Vista, but not for XP.  HELP!  

Answer : Problem: Need to have MOV files show up as thumbnails in Explorer in XP

Ah. Gotcha.  Then probably this is what you need. All it requires is that you install and register a single .DLL file. Test it, of course, on another system first.

QuickThumb v0.21 - UPDATED!

A Windows Explorer thumbnail handler for QuickTime movies. When you put Windows Explorer into thumbnail view, this extension will create thumbnail images so that Windows shell can use it natively. Written in C++, uses COM, ATL, MFC, and Apple QuickTime APIs. Only tested using QuickTime 6 and Visual Studio .NET, your results may vary.

http://www.ocf.berkeley.edu/~mbarrien/projects/