Unix can't execute Windows executables.

But let's say it's something the unix system could run (e.g. a Perl script). First, you need to transfer the file over to the unix machine by some means (scp, ftp, http, smb, nfs, etc) or mount the Windows drive on the unix machine by some means. Then you'd have to get the unix machine to launch the executable by some means (ssh, http, etc).

The possibilities are pretty much endless. I'd go with scp to transfer and ssh to execute. What's the problem?