I'm having a lot of trouble getting RT7 Lite to work. I'm running windows 7 x64 Ultimate, and I installed WAIK 7, then installed RT7 Lite (1.5.0), then gave it my Windows 7 Ultimate x64 iso file to extract. It goes through a ton of waiting time, a few progress bars, and a choice of operating systems (I choose "Windows 7 ULTIMATE"), more waiting, and then I get an error message: --------------------------- RT Seven Lite --------------------------- RT 7 Lite can't able to mount the selected WIM image Cause: This may due to RT 7 Lite working directory may be opened --------------------------- OK --------------------------- Clicking OK makes RT7 Lite close instantly. I figured that it might be a permissions issue, so I started RT7 Lite as an administrator, and it seemed to make a lot more progress... it even showed "Setting environment" at the bottom of the screen, a change from the usual "loading image...", but then I got this error message: --------------------------- RT Seven Lite --------------------------- A device attached to the system is not functioning. --------------------------- OK --------------------------- Clicking OK dismissed the error, and RT7 Lite appeared to be usable, but it seems like random activities cause an exception to be raised. I'd hit the "Continue" button, and RT7 Lite seemed to keep working. But when I finished customizing my Win7 disc and clicked the Commit button on the log tab, I get another exception error, and RT7 Lite just stopped working completely. It sat there doing nothing, using no CPU time. Every option in the program was disabled, so I couldn't do anything at all. Has anyone actually managed to use RT7 Lite to create a working install iso? How'd you get around these issues? I really need to slim down my Windows 7 install, because I have a 60gb Solid State HD, and I can't afford to waste so much space on Windows 7 features that I don't need.