Welp, after looking through the directions I have, it appears you can do things from a DOS window...
Are you sure about with XP? I think it would work in a dos window in win95, 98, & ME, but XP is
very restrictive about reading or writing directly to com ports.
XP safemode won't help; in fact, it might prevent the XP com port drivers from loading.
Then again, I don't have a KE72, so I'm no expert on the software used or if it's XP compatable. Heck, I don't have XP either.
So sorry in advance if I'm wrong.