How to remove vshost.exe after testing?

In VS2010, I'm using TestDriven.n开发者_运维技巧et to execute unit tests. It seems that each time I run a test, another myappname.vshost.exe loads into memory. It not uncommon to accumulate well over 20 of these processes. Is there something I can do to prevent this?

Or, is there a quick way to kill all of these processes?

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If you disable "Enable the Visual Studio Host Process" checkbox on the debug page of your project properties, this won't spawn. If you notice that this hampers your work - i.e. you need features of the host process, you can try to write a simple script to kill the process that you run after each debug session.