To obtain a valid authentication code for Sony Vegas Pro 9, users had a few options:
Sony sold its Creative Software division to Magix in 2016. Because Vegas Pro 9 is well past its end-of-life status, the original online registration servers managed by Sony are no longer active. Magix Support Limitations sony vegas pro 9 authentication code
Select "Register from another computer" or "Register online." Since Sony sold the Vegas line to Magix years ago, the "online" automated servers for version 9 may be inconsistent. To obtain a valid authentication code for Sony
Enter your existing Sony serial number in your MAGIX My Products section. If you used the same email address for your old Sony account, your products may already be listed. your products may already be listed.