I've heard good things about VirtualDub.
OP, what exactly do you need to do with this software?
edit videos
...As in, what features are you looking for?
Install Linux, then? It's free and you can have both Windows and Linux on your system. Or, use that reverse WINE program I can't remember the name of. If you're willing to shell out $50, which isn't free but it's not bad for a video editing software (see: $600 Vegas/Premiere/AE).