Windows NT 3.5
Operating system
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Windows NT 3.5 is a major release of the Windows NT operating system developed by Microsoft and oriented towards businesses. It was released on September 21, 1994, as the successor to Windows NT 3.1 and the predecessor to Windows NT 3.51. Wikipedia
Release date: September 21, 1994
Latest release: Service Pack 3 (3.5.807) / June 21, 1995; 28 years ago
License: Commercial proprietary software
Source model: Closed source