Gen Key For Mount &blade Authentication Code Invalid For My Free Version Of Sony Vegas But Key Gen Worked?

Authentication code invalid for my free version of Sony Vegas but key gen worked? - gen key for mount &blade

I'm trying desperately to succeed a free version of Sony Vegas. I could get a key gene for the job, but no matter how many passwords sex, stay away from reading as invalid? This is the last thing you need for this program. Anyone who knows anything about how you get a password for this program work? I would appreciate any help.