murgirl... yes and also note..
Q: Which operating systems support DivX™ software?
A: We are currently developing DivX™ video to work on multiple platforms. Today it works on Windows 98/ME/2000/XP, Linux, and the Pocket PC platforms. We are currently alpha testing the latest version for the Mac OS and hope to have the final version released soon.
Q: What media players can I use?
A: Windows Media Player 6.4, 7, and 8; Real Player; BS Player, and The Playa, among others. We recommend using the DivX Player. You can download it as part of the DivX Bundle.
Q: What PocketPC PDA's does the Pocket DivX Player support?
A: Currently we support the following PDA's running the PocketPC Platform:
iPAQ
Jornada 680
Jornada 720
Jornada PocketPC
Casio E10x
Casio PocketPC
PocketPC 2002
Another which I can't find again states - DivX provides the higest quality video for Windows Media at smaller codec size but emphises no direct relationship to Microsoft.
emit...