Macs can't run .exe files. In other words, as you are now, you cannot run this whatever program you have because it's for Windoze PC only.
However, you can get Virtual PC, which is a PW emulator for Macs, then get a copy of Windows (you can choose to various Windows on your VPC) and run it through there. Don't expect it to run very fast though.

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iMac G4 OSX 10.3.9
RAM 256MB
LW 4.10.5 Basic
ADSL anything from 3 to 8Mbps/around 1024kbps

"Raise your can of Beer on high
And seal your fate forever
Our best years have passed us by
The Golden Age Of Leather"
-Blue Öyster Cult-