Invitation codes for Microsoft’s Azure services platform currently come in three flavors:
– Code for .NET Services and SQL Data Services
– Code for Live Services API and Live Framework CTP
– Code for Windows Azure (hosted services, deployments, and storage accounts)

Once you get your tokens you need to activate them (associate these with your Windows Live ID).

For the .NET Services and SQL Data Services, follow the following URL “http://go.microsoft.com/fwlink/?LinkID=129428”. Sign in using your token as shown below:

For the Windows Azure and Live Services tokens, follow the following URL “http://lx.azure.microsoft.com”. Redeem your token by associating it with your Live ID. Once done you can click on the “Account” tab to see the services that you get as a result of redeeming the two tokens. The following image shows what are these services (again note that the .NET Services and SQL Data Services are not included here as they have their own portal).