Actually, I screwed up. I used TEST.CMD instead of TEST.BAT in the Login Script Name path. That explained one part of why BUSINESS.EXE didn't work from a batch file within the NT domain. The other part involved adding the "%0\..\" parameter. After I changed the commandline to "%0\..\BUSINESS.EXE", TEST.BAT and BUSINESS.EXE worked normally.

However, I still have one other question. Since I tested this on 2000 Professional, what are the ramifications for XP Professional? I thought XP had a problem with "%0\..\" parameter. And if so, would the 2000 domain administrators have to test for the OSes in their batch file?