Although it's not listed on the What's New page at Ring Engineering, RailPro Assistant Software V2.00 was released a short time ago.
You can download it here:
http://ringengineering.com/RailProSoftware.htmRailPro Assistant Software V2.00 is required to use the new LM-3 series modules and the updated HC-2b.
This software must run with administrator privileges under Windows.
If you are having trouble with RPA V2.00, follow the instructions here to set it to run as administrator:
http://rpug.pdc.ca/index.php?topic=256.msg1729#msg1729