Microsoft Makes The Extensible Storage Engine Open-Source Written by Michael Larabel in Microsoft on 1 February 2021 at 06:13 PM EST. 45 Comments Microsoft's Extensible Storage Engine that has been in use for more than a quarter century and present since Windows NT 3.51 and Microsoft Exchange 4.0 is now open-source. Microsoft has begun opening up the source code to the Extensible Storage Engine, a
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