I tried to use FileBot today and it wasn't working for me. For some reason it had dissasociated itself from my license file, so I had to find that and re-activate it.
But then when I try and run it it keeps tripping out with the error
Exit Code 100 means that FileBot didn't do anything because there was nothing to do, i.e. it correctly did nothing. There's nothing wrong with FileBot, but there may be something wrong with the input folder, because it's either empty or each and every file has already been processed previously.