Here is some of Microsoft realization under Ballmer direction:
Hotmail buyout, now in a steady decline ever since
WebTV, does anybody still know what it is?
WMA DRM, after M$ screwed all their partner, they finally kill it and screwed every consumer who made the mistake to buy DRM music.
.NET development, what a mess.
Bing, no comments
Skype Buyout, After Microsoft screwed them self with their designed not to be cross-platform Messenger, they never supported...