Long ago, I used a free version of the jv16 powertools for this. But that's all my experience.
Anyway, have a look at:
http://www.download.com/1770-20_4-0.html?query=duplicate+files&tag=srch&searchtype=downloads&filterName=platform%3DWindows&filter=platform%3DWindows
http://www.pcworld.com/downloads/collection/collid,1325-order,1-c,downloads/files.html
You might like one of those programs.
Kees
Running Windows XP, I need a good program to remove duplicate files from my hard drive. With four users, a lot of things, music especially, are in multiple locations and I'd like to get rid of them.