Docker pull shows "Unknown blob"
Your docker version is 1.12.2 which does not supports Windows Containers, which means you are running Linux Containers in the VM. And you are pulling a Windows container based image so either update your docker to the 1.13.0 beta version which supports Windows Containers and pull this image or find a linux based image of .Net.
To see how to switch to Windows Containers, see this GIF
The problem is not Windows/Linux cross compatibility. A Linux client can pull Windows images, though it cannot actually launch them.
The issue 'unknown blob' is most likely image corruption. Refer to other answer that mentioned that your image name is deprecated.