Microsoft reached a milestone today as Windows 95 reached the 15th anniversary of its launch on August 24, 1995. The OS was the highest-profile debut ever for Microsoft and saw rare lines for a software launch; media reports from the period had some lining up without knowing what Windows 95 did. Its launch campaign included an ad blitz with the Rolling Stones song "Start Me Up" and ultimately saw Microsoft spend $300 million on marketing, a feat it wouldn't repeat until years later.
