Running Limeware 4.0.8 under Win2k compatibility mode seems to have done the trick. The really strange part is that I've been running Limeware for nearly two months since I upgraded to XP2. Last week sometime was when I first started noticing that I couldn't start the program.

If I uninstalled it then reinstalled it (not just a "repair") it would run once. After exiting the program and attempting to run it again, Windows display the unhandled application error dialog box.

I wonder if XP 2 and the JRE aren't cooperating?