The following guest operating systems have been released on Windows Azure:
- Windows Guest OS Family 2 which is substantially compatible with Windows Server 2008 R2
- Windows Guest OS Family 1 which is substantially compatible with Windows Server 2008 SP2
The included link shows which guest operating system releases are compatible with which versions of the Windows Azure SDK.
Note: To ensure that your service works as expected, you must deploy it to a release of the Windows Azure guest operating system that is compatible with the version of the Windows Azure SDK with which you developed it.