I think MS have lost a lot of support on the desktop after deprecating Windows Forms (which is all a lot of enterprise apps need), followed by WPF/Silverlight's poor penetration leaving no hardware accelerated graphics for non-WPF (bit blitting excluded), and then the confusing messages around WinRT which at one point looked like they were deprecating WPF as well.

While the front end flashy stuff isn't there compared in .net compared to the better Javascript libraries (I love d3!) MS have really progressed the non-sexy .net improvements e.g. C# evolution, F#, WebAPI.