Microsoft charges companies to add their product to the list of compatible products, and a lot of companies just dont do this. Chances are it will work (I would say about a 90% chance that it would work.) If it does not work, you can always switch on compatibility mode and select Windows 98.
If you are worried about it damaging your system, dont be. This software was written by a trustworthy company (Sony) and will not damage your hardware. It will most likely not damage your software either. If you are worried that it will, do this:
Before installing the cam, go to
Start -> All programs -> Accessories -> System Tools -> System Restore.
Now create a restore point.
Now if ANYTHING goes wrong with your install, you can always revert back.
Hope that helps