It likely thinks its a virus because it sees that its trying to monitor the position of all open windows, normally used for seedy things like keyloggers :P That and because the EXE is compressed to save space, most anti viruses don't like packed files, a good test is always to use
http://virusscan.jotti.org/en which uses many scanners
Edit, NONE of the scanners pick it up as suspicious.. that impiles you have an old out of date buggy over aggressive heuristic anti virus (
http://virusscan.jotti.org/en/scanre...386fa58a738b73)