First can you tell me what version of Windows, Mach4 and our plug-in you are using (see
http://www.pmdx.com/PMDX-Forums/index.php?topic=100.0 items 1, 2 & 3)?
When you ran the installer for our plug-in, do you recall if you saw a second set of installer dialogs pop up towards the end of the installation process? It should have said something about "virtual com port driver".
I would like you to capture a log file for me so I can (hopefully) see what is going on. See this post for the basic instructions:
http://www.pmdx.com/PMDX-Forums/index.php?topic=97.0. You can still get to our configuration screens even if the plug-in can't find the device. The following steps are important to do in exactly this order:
(1) Enable the debug log as described in the other post, then exit Mach4, wait a few seconds, then re-start Mach4.
(2) After you get the error message, go back to our plug-in configuration dialog and disable the log file ("restore defaults"), then exit Mach4
You now have a choice. If you can find the log file (its location is given in the other post), you can attach it here to a post. Or if you'd rather, you can create a Mach4 "package" and post that (or email it directly to me at bob at this domain)
Bob