By the way, this is my first post guys, hello to all! Did you installed wimmount driver from WAIK? Whats your host OS? Which version of rt 7 lite you are using? Hi Ben, I'm using RT 7Lite 1.0.6 on Windows 7 RTM x86 so didn't install WAIK seperately. Do I need to manually add some more files to it? -Nav no, you do not need WAIK if running 7. good, so there is nothing wrong with the installation.... any idea how to debug the actual error and make the program work?