From Microsoft Watch: On August 24, 1995, thousands of people were standing in line to buy the first copies of Windows 95. Today, a decade later, there are still Windows 95 die-hards out there. You could look at that fact as a testament to the strength of Windows 95. Or you could look at it, as Microsoft does, as an example of the challenges that Windows Vista will face when it comes to market next year. Why are users still running a ten-year-old operating system? What would convince them to upgrade? We take the pulse of some Microsoft watchers on what's keeping Windows 95 ticking.