theodp writes: Microsoft recently extended 'It Just Works' compatibility for Visual Basic 6 applications through the full lifetime of Windows 8, so VB6 apps will have at least 24 years of supported lifetime (VB6 shipped in '98). So why has VB6, "the un-killable cockroach" in the Windows ecosystem, managed to thrive? 'Cockroaches are successful because they're simple,' explains David S. Platt. 'They do what they need to do for their ecological niche and no more. Visual Basic 6 did what its creators intended for its market niche: enable very rapid development of limited programs by programmers of lesser experience.' But when Microsoft proudly trotted out VB.NET, the 'full-fledged language' designed to turn VB6 'bus drivers' into 'fighter pilots', they got a surprise. 'Almost all Visual Basic 6 programmers were content with what Visual Basic 6 did,' explains Platt. 'They were happy to be bus drivers: to leave the office at 5 p.m. (or 4:30 p.m. on a really nice day) instead of working until midnight; to play with their families on weekends instead of trudging back to the office; to sleep with their spouses instead of pulling another coding all-nighter and eating cold pizza for breakfast. They didn’t lament the lack of operator overloading or polymorphism in Visual Basic 6, so they didn’t say much.'