you might not have a legit version of office. ms will locked it if you try to upgrade it and it isn't legit
The Ultimate Hard Drive Utility PowerMax 4.23. (It now has the ability to clean a Boot Sector virus on the quick erase option.)
The best browser Netscape 8
Have you accidently delete something? Look here (trial. the better one) and here(free)
I just did a 2500 client deployment of Office 2003. There are a few problems that came up with some apps. The Adobe applications I mentioned above all have weird issues.
Crystallball (scenario modeling) is another, as well as PIProcessBook.