to answer my own question
just fyi: i was able to get this to work.
first i made a copy of the 'Windows Command Processor' application in my 'Windows Applications' folder under Parallels.
then i did a show package contents on the copied application and navigated to Contents:Resources. i edited AppParams.pva in TextEdit and changed the App Path to c:\mybatchfile.bat. it worked, although the batch file didn't exit completely. i had to manually quit it from my dock.
hope this helps someone...
-lyle