I am using Vegas Pro 22. I notice that when Vegas starts up that two instances of Service_rel_u_x64_vc16.exe are started as well. This service is found in: C:\Program Files\VEGAS\VEGAS Pro 22.0\UPS When I close Vegas, only one instance of this service closes. On repeated uses of Vegas (start, then close) the extra unused services accumulate. My work around is to use a script I wrote to remove the extra services (whilst running Vegas), or use task manager to kill all of the remaining service once I have closed Vegas.