Find duplicate images on your hardrive
SimilarImages is a free application designed to find similar images (duplicates) on your harddrive.
It uses a fast Graphics Library to access the files and analyze the contents of the images and not the binary contents of a file.
Depending on these results (datasets) SimilarImages computes comparision values on a file-to-file base.
If this comparision value is below a certain, user-configurable value the file-pair will be considered to be similar and the Compare Files Window shows up.
We at appsformypc have tested and used SimilarImages and it worked pretty smoothly