The midi ports themselves actually work, as all applications which access the midi ports directly, such as Cubase or MidiOX, work properly and sends out the data. The problem is when I want to use applications which rely on window's midi port settings (for instance, windows media player or DosBox). In those cases, I get absolutely no sound, as if it was no midi port assigned at all. I got around this problem in DosBox, because you can select especifically which midi port you want to use (and it works!), but the problem is there when you cannot select the midi port because the application relies on window's settings in the control panel.
Anyone does know which is the problem and how to solve it?
May not be the reason, however please checkout this article at RME Intelligent Audio Solutions about
The 10 Entry Limit in Windows NT/2000/XP. I found with un-installs and re-installs of the Realtek HD audio drivers I was using up WAVE, MIDI, MIXER and AUX slots. You might have the same problem.
Hope this helps,
dvwjr