I've just been alerted to a false positive for the Win32:Xpaj-gen virus in a zip archive of a Windows app I just created on my Mac using LiveCode. The file has since been checked with other software and declared clean (and it was generated on a Mac in the first place and went nowhere else).
I understand that this is something that has cropped up (and been dealt with by you) in the past, so I thought I'd report it here. The zip archive can be downloaded here:
http://panoramaphotographer.com/software/exiffixer/ and I'm more than happy to help directly if that's of any use.
Keith