[MattGaiser]

They could basically eliminate vendors and make everyone use a Microsoft tool. But I suspect many would object to that solution also.

[diego_sandoval]

The they'd get sued by the EU for bundling these tools into the OS and eliminating the market for third party vendors.

[MattGaiser]

Exactly. If you are going to demand a ton of different companies build different parts of a product, integration issues are unavoidable.