How can I default VS Test Processor Architecture to x64?

Question

I depend on a mixed-mode assembly which is compiled for x64. Because I do not want warnings in my build, all of the projects in my solution target x64 directly--they are not Any CPU. To get my x64 unit tests to work properly, I find that I must manually change the Visual Studio unit test Default Processor Architecture to x64 every time I start Visual Studio. This is easy enough but tedious. Is there a way to get VS to persist this setting so that I don't have to do it every time?

Accepted Answer

On Visual Studio 2013 I found that after setting "Default Process Architecture" to X64 I'll go and open "Options..." and close it with "OK", then the "Default Process Architecture" will preserved, at least for this one solution.

How can I default VS Test Processor Architecture to x64?

Solution

Problem