thanks bud, tried that and had a good poke about. most of my progs run from a second drive and i copy and store all my other stuff in another external drive. its the operating system that seems to have suffered from the corrupt files. things like chkdsk, rundll32.exe and srclient.dll. i found this site
http://www.allbootdisks.com/disk_contents/down load/xphome.html
but i have this thing running. firefox stopped working cos of undeletable corrupt files. i did a registry scan too over 2600 errors. dint delete anything though.
as you said a clean install would probably be the best option so do you think borrowing a xp home disk and using my registration code work?