Office 2000 will be fine. DOS based Autocad can be trouble since it may rely on older EMS or other extended memory handlers that may be gone in this new OS.
Other failing softwares are known to be older antivirus, scanners and some printers.
In your case, I would not move until you can test the Autocad program or move to something less than 5 years old from Autocad.
I have to upgrade my OS from 98SE to XP. Will the programs I run now work in XP. I have a version of Autocad that is a DOS version and runs well in 98SE
in DOS mode. can I still do this in XP.
What about Office 2000 and others of that era.
I have heard that 98SE will not be supported after June 2006, anything on this.
Thanks for your consideration.