I don't like Microsoft's monolithic attitude towards software development. They have dumbed Visual Studio right down so that if you can use a mouse you can 'write' a program. I don't like the .NET framework. I don't like that they felt the need to ruin several perfectly good languages just to say they had their own 'better' versions. You don't see Java making "Java C++".

Really, when you think about it, Microsoft has a monolithic attitude towards everything. They make things like Windows, intended to be the vehicle for everything but they slip in things like IE and WMP which are more or less compulsory if you want to use the operating system.