I have DebugView open pretty much all the time for my own projects. Please send out the next version in release mode (that is, without debug output enabled). Or at the very least prepend "Launchy - " or something to the output so that it is easier to filter.
Huh, I hadn't heard of DebugView, that's pretty nifty. I'll keep your request in mind, but can't you filter on Launchy.exe or something? That seems doable.