Thanks, JimBeam.
The goalposts have moved slightly - for Mac I just need to support PowerPC and Intel. Part of my problem is that it is such a small project I have to get it done without investing anything.
Applescript may end up being the answer, but I was asked to provide 3 .exe files Wintel, Appletel and PPC. So far I have not had success with VMs so I will just have to try borrowing some hardware.