When try open the program (Vegas PRO 17) the screen freeze, displaying this message "Adding MIDI MME Suport". I need worked, i have jobs to deliver. Waiting for a solution
MME is the dinosaur of all audio drivers, pre-Windows I think, and older than @set
The question is what Windows service, plugin, or controller is active that is trying to talk to Vegas through an open midi channel? Do you have Cakewalk or Cubase?
Have you tried switching your audio device in Vegas to ASIO, Direct Surround, or HD Audio, depending on what its called on your system?