To try CADSM in Mac OS/X with 128MB or more RAM:

Download cadsmmacx.zip  (9,645,089B).
Unzip cadsmmacx.zip, preserving subfolders, into the same folder.
From the Finder, drag cadsm1.im and drop onto visual.app. This will launch CADSM.

Please read the Known Problems

How to use CADSM beyond the 30-day evaluation period.