"Noteout" problem

Dear all, the problem is simple:
I create a “noteout” object and, with a double-click on it on “lock” mode, I can choose just “Microsoft Synthesizer” and “Sint SW Microsoft GS Wavetable”.
I’m on Windows XP and I’m using Max 4.5.5.

Why I can’t choose virtual MIDI port “Max 1″ or “Max 2″?
How can I send MIDI message to other sequencers?

Thank you,
Bruno