Hi rxa, I contacted the CRM support team to find an answer for you, here was the response: Unfortunately you are unable to upgrade the trial license to a MSDN license. What you will have to do is uninstall Microsoft CRM 4.0, and then do a reinstall to existing databases. Please make sure you have a backup...

Can you change the MS Dynamics CRM license from a 90-day trial license to one you get from MSDN? This is for the full installation on a local server.