I know polling windows captions is not the smooth way...but hey, that program is about 2.5 years old. And it worked.
Checked the process - it's at 0% most of the time. I don't check the caption every millisecond btw. THAT would be really odd.
If you could provide me with the needed info how to actually capture that window open event, I'll do a special version as a real plugin maybe.