Presumably you're looking for an app called GEFCOMMVB. It was available on GE's website several years ago and got removed at some point. I don't know whether they ever restored it.
I can probably find it on one of my older computers. It's a VB6 app, not VB.net, so if you want to modify the source code to customize it for your situation you will need the appropriate tools. Can VB.net developer import a VB6 project? Contact me with your email address via this site's private messaging and I'll send you the project if I can find it.