Now Microsoft has released the source code for MS-DOS 4.0 in partnership with IBM, and apparently, all it takes is the logo to make me ... come in just 50 years The Windows 95 start-up sound ...

Sunday July 31 marks 20 years since Microsoft launched Windows NT 4.0. On July 31, 1996, Microsoft released NT 4.0 to manufacturing. It was generally available as of August 24 that year.