No problem. I was in the process of proving it by having my installer not run the Finisher so I could see all the files.
I did take your caveat to heart and was willing to do the testing. I think I have it working now (using devpath from the DVD ).
As an FYI, I had to do it a bit differently then you suggested. I don't know why, but the exact commands you suggested resulted in command windows opening up that I had to manually type exit to close. What I found to work was:
cmd /c start /wait xcopy /s /i /y %SystemDrive%\D\3\LCD %SystemRoot%\DriverPacks\LCD
I had to change it from COPY to XCOPY. I then added some flags to XCOPY to ensure it wouldn't error if the directory was missing and such. I also used the more friendly name of "DriverPacks" in the Windows folder, and I dropped the "3" since I'm only keeping 3rd party packs.
To run devpath, I had to drop the START /WAIT for some reason...it was aggravating getting this to work...
cmd /c %SystemRoot%\DriverPacks\Devpath.exe %SystemRoot%\DriverPacks
I also added another clean up that maybe should be considered for the Finisher:
cmd /c del /q %SystemDrive%\DriverPack*.txt
I find that some packs (especially nightlies) have a changelog at the very top of the 7z file, which then hangs around at C:\ when all is done. The above cleans them out.
Thanks again for your help!