Vista Business and MS Office 2000 SR1(2 posts)
Most of the applications will work, but some features aren't going to work quite right.
There are also lots of problems with Outlook 2000 on Vista, such as the address book not working, etc. Of course, Outlook 2000 was pretty terrible even on XP... Outlook 2003 is the first decent version.
But Word and Excel should mostly work, unless you need to use a lot of the add-ins, cause some of them might have issues.
You can always use system restore to remove it if you have problems. (might want to manually set a restore point to be sure)