When was MS Message Queue first released?

When was MS Messa开发者_Go百科ge Queue first released?

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http://en.wikipedia.org/wiki/Microsoft_Message_Queuing

Since Windows NT 4.0 and Windows 95, so 1995-ish.

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It looks like NT 4 Option Pack 3 was the first release of MSMQ. That puts the technology in May of 1997.