On my current project I’m working with MsTest and ASP.NET in Visual Studio 2008. I’ve spent the last few weeks working on building models to support some user controls and most of my time has been spent flushing out models in a test project. Typically I run tests using the Test View window in release mode. I ended up running a specific test in debug mode today when I noticed this:

Hmmm. Why would the Developer Web Server start when I’m running tests? Maybe there’s an option in Property Pages > Start Options for the site project…nope.

After some digging around I realized I forgot about the other property settings interface, the Properties Window:

Changing this to False fixes the problem. It seems odd that the default is True…