

I started getting this error recently while casually starting the VM: “The command is available only in Parallels Desktop for Mac Pro or Business Edition.". Hey, I think I figured out a 100% working solution

if the key is NOT link the user get this message: If this is a key for Parallels Desktop Business Edition, please follow these instructions or contact your system administrator.when _ % 10 = 0 (key is valid) the key is sent to Parallel database to see if the key is link to a users.Parallel Desktop make their keys using Luhn Algorithm.
