MSDN

Developers with Professional and Enterprise typically also have a related MSDN subscription. This subscription gives you development access to Microsoft tools such as TFS or Visual Studio Online (VSO). MSDN benefits are different between Professional and Enterprise. The latter provides developer access to nearly all Microsoft software and operating systems including SharePoint, Exchange, Office, Dynamics, BizTalk, and more. Professional with MSDN, however, only provides access to TFS, Windows Server, and SQL Server.

MSDN subscribers also have training benefits, access to deployment planning services, and monthly credits to allow Azure application hosting ($50 / month Azure credit for Professional subscribers and $150 / month for Enterprise). ...

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