After getting a physical dongle and the 3 disc set of discs for Tech2 for $20, I got it installed on an IBM T61 with TUS9B USB to RS232 connector. Well, I got everything loaded on the Tech 2, said it was downloaded- I had to use a 120v wall adapter to keep the Tech 2 on for successful download. I am using a Chinese clone of a Tech 2. It went ready to program. I unplugged it from the T61 and had it hooked up, followed instructions and I tried to program it. The Tech2 got to progress of 50%-51% and then read: Version 2.000 Programming Failed ! Utility 12590496 Line 06 Operation 34 Errorcode FB Line 07 Operation B0 Errorcode FB Line 07 Operation B0 Errorcode FB Line 29 Operation EE Errorcode 00 Line 07 Operation 00 Errorcode 00 Press More Utility 12590496 Line 29 Operation EE Errorcode 00 Tried to program again and got the same result. Just what I needed. Passthrough will not work either. AGGHHHH ! HELP !