Windows 7 already has built in DivX support in the current beta. Hidden inside the various changes since beta for the RC is a change to Windows Media Player to natively support the .mov files. Yeah, the support for .mov files was mentioned deep in a long list of changes that are coming to the Windows 7 Release Candidate. While this may delight owners of cameras which output in the .mov format, it's also good news for anyone who enjoys watching movies on their PC, as movie trailers, particularly those on Apple Movie Trailers, come in .mov format, and so require QuickTime (or a freeware player such as VLC) to view.