This is too hard for our users to get right and we currently have many copies of this. We should make this into a shipped package. This is not just the TestHost, it needs to include all of the MVC-specific things that we do.

This needs to include validation that some of the common problems are addressed:

• Shadow copy off
• Look for missing deps files
• Set working directory correctly
• Prevent assembly crosstalk (through ApplicationPartManager)

And new stuff:

• Get a RequestDelegate or HttpClient