Windows VISTA: Error 633

Hi evryone,

I’m on windows vista i installed the modem without problem but when i try to dial up i have an error 633 (My port COM is can be ocuped or used by an other application).

Maybe somebody have an idea of which serices are installed by default on Vista and use COM port.

Thanks for people who will try to help me.

Mathieu

PS: I used i with Windows XP without trouble.