Well, I know nothing about PCOMM, but a quick perusal of the IBM blurbs on the package indicates it can be used with VB automation, so I'd find an example of how to use it with VB, post the sample here and someone can probably tell you how to translate that into VFP. Or you might be able to get a workable VB object which serves as a wrapper class for PCOMM and then have VFP talk to it.
You might get some ideas or code samples from the the VB forum here on TekTips. Dave Dardinger