flash

Quoting:Microsoft is always on guard for threats that make Windows less relevant or make it easier to switch from, and Flash could be that kind of disruptive technology. If, in a few years, large numbers of users are running RIAs built on Flash, they will have less incentive to upgrade to a new version of Windows. They might even consider switching to alternatives like Linux and the Mac because their applications would run just as well. In effect, Flash is to Microsoft's Windows business today what Java was in the 1990s.