
Cooper was impressed, not by the graphical multitasking system-something he'd already written himself-but by Microsoft's dynamic-link libraries, or DLLs. On stage was Steve Ballmer, presenting the first version of Windows.

In late 1985 or early 1986, a friend had brought Cooper to Microsoft's annual technical conference in Silicon Valley. But for the past month, Cooper had been frantically coding in preparation for this Microsoft demo, adding last-minute features to Tripod, a shell construction set for the Windows operating system that he'd been working on as a side project. “I was one of the first companies to realize that you could retail software without needing to sell a computer,” he recalls. In the spring of 1988, Alan Cooper sat in front of a computer in a large boardroom at the Microsoft headquarters in Redmond, Washington, patiently waiting for Bill Gates to arrive.Īt the time, Cooper's main business was writing desktop application software to sell to publishers.
