Yes, make sure you have constant, stable battery power. Although your just reading, its a pain to get 80% done to have it stop! You will use this saved "bin" file from your car and open it with Me7logger, or GUI.

So after a hiatus I am trying this again.  I'm picking up right where I left off, I found out that the problem I was having with the ECU definition file I got off here was that the software number was different despite them both being H-boxes from B5 S4's.  I have tried using the Nefmoto software to read my ecu to get my actual .bin only to have a problem with the ECU rejecting security access.  So thats where I am stuck, how can I get around this security access problem, or how can I get a h box bin with SWnumber 1037354774?