>Looking at Installsheild Express for Visual Foxpro I noticed that the only options seems to be to build to a CD. Some of my users have zip drives which the would prefer both as the source of the install program and to execute programs from a zip cartrigde so they can use it from several PC (which may be using different versions of Windows).
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>Is this possible, espicailly the execution part? If so what do I need to do?

The CD option is just a design consideration for the size of the medium for which the installation should run from.
If you have a small application, it wouldn't matter which option you chose. If you have a very large application, then the medium size would matter as you may have to span volumes for the installation.

In your case, it probably wouldn't matter so the CD option would be the same as if you setup a profile for the XXmb size of the zip disk.

In short, pretend the zip disk is a CD and you should be fine.
If your support files are very large though, you may run into your problems.