Don´t do what I tried to do, remove spyware/virus from within UAE. I marked some files I shouldn´t have marked and then hit delete in DOpus. XP didn´t start without those drivers imagine that. And when I attempted a repair/install over the old system it just froze.
Luckily I had an empty 120GB HD lying around(was gonna be file-backup)and clean install(propably around time my XP-installation was 2 years old) and I was up and running again.
Workbench was so much easier, just do a straight copy to another disk/partion and then rename/use early bootmenu if anything weny wrong.
Luckily I had learned the lesson back in the Amiga days:
Never save your work on the same disk as the OS!