Vince, I don't see how the fact that the file has attached "streams" (while interesting) can have anything to do with it. This is because my program and the native Windows "fc" program have absolutely no knowledge, from what I understand (I am certainly not an expert in this subject) that those "streams" even exist. Maybe I should look into it further because it implies that my program that deletes "duplicate" files could delete a file whose "primary" stream was identical to the "primary" stream of another file, but other streams could be different or even not exist at all, which would indicate that my program could delete a file it really shouldn't because it is not really "identical" to the "reference" file. (Although it's not a high likelihood for me because I simply do not "create" files with streams in the first place.)I just became interested in this thread. I DL'd the file in question and copied it all over the place, both on XP and Win7. All copied were identical.
But I did notice something peculiar that no one has mentioned ... that the file has an attached stream....
I will also note that, if you read the other postings in this thread, another posting in this thread has identified the complete explanation for the file differences that I was seeing.