Since I didn't see this when I searched the forum, I'm posting so others can find it. In the current Illustrator CC 2015 Scripting Guide PDF (link in this forum on the right menu), there is a possible error on Section 3: Scripting Illustrator, Launching and activating Illustrator, VBScript (pages 22-23).
I don't know if there's something specific to my setup causing this, but if anyone else is searching who is having a similar issue, I wanted them to be able to find this. I wish I had, would have saved me a lot time troubleshooting!
Thanks for sharing Nlwest