MSDN Evaluation Centre
The MSDN Evaluation Centre is the central location for all Microsoft developer product trials and beta evaluations. Try a product before you buy it or test the latest beta to see what is in store for the next release. Start at the beginning of the evaluation process and follow the new products as they go through to the final releases. Remember to check back often as new products will be added as they become available. As you evaluate your software, we'll provide you with comprehensive and relevant insights and information delivered to your inbox. Resources like: Webcasts | Virtual Labs | Community insight | White papers | E-Learning Events
Have a look at the current set of featured Evaluations:
BizTalk Server, Office System, SQL Server, Visual Studio, Windows Server. Please visit https://msdn2.microsoft.com/en-gb/aa972637.aspx