I swapped the emulator files back to the original and my GM bin is now communicating with the Chevy truck while still showing a vbatt 80 error.Alright, I looked through them and the only error the Saab software is getting is an RX timeout. There's no other obvious red flags.
I'm afraid I can't tell you any more except that I guess it doesn't work. Do you have any issues with the GM software using "emulator OTHER.exe"? Can that communicate with your Chevy? If it can't, then there must be some problem with Drewtech's drivers and Tech2Win 2.336. I would ask them for advice.