engravernc,
You can do that. You would need to modify the autoexec.bat file and replace the pcdr line with something like one of the following examples.
Quick method for running 1-3 tests:
pcdr /rt:cpu&1 /rt:mem&1 /pr:b:\testlog.txt
this would run CPU test 1 memory test 1 and save the logfile to the B: drive then exit.
Overlay mode using a pdo:
pcdr /ba:03 /pr:b:\test.log.txt
This would run pcdr and all the tests saved in the overlay #3 then save the log to the B: drive and exit
The permutations are endless (almost). Please take a look at Appendix A in the manual it lists the DOS command line switches.
You could do this on your USB key or make a custom CD. You will need to be able to save the boot image from the distribution CD, modify it and then use the modified image to create your own customized CD Any good CD authoring program will allow you to do this.
-Fred