Recently one of my computers was infected with a vbs worm that spread through a backup folder adding an activeX script to my html pages. When I installed and ran AVG it deleted most of the files.Is there any way to undelete them? I can then remove the code by hand.... (all 450 files :( )

Thanks DLH6213 I've downloaded it and I'll try it after breakfast! ;)

I suppose using Data Recovery tool - DataRecoveryWizard.
It is imho the best one among it's family. Easy to use and powerful.
It actually never failed me before. Recommended!

Actually I was looking for a simple method, rather than data recovery. I just grabbed the files off the 'live' sites to replace them, rather than mess about restoring them.
Thanks for all the suggestions anyway.