>I'm using VFP5 and VB5. The MS comm control is version 5. It tells me it can only be single threaded. Is that a problem?

I don't think so.

>Plus I don't see the oncomm event listed as it shows in VFP.

Double-click on the MSComm control in your form and select OnComm from the list of methods available in the rightmost combobox at the top of the code window.

You can also create it manually by typing this code in the code editor:

Private Sub MSComm1_OnComm()

HTH