When I ran ChecksumControlPortable, an error message box popps up, says "The request entry was not found. Please check if it is present in the Filename C:\User\***\AppData\Local\Checksum Control...." and stuff about section and ident of request.
This error occurred in 64 bit Win7SP1, but works fine in 32 bit Win7SP1. New install into non-system drive download folder.