I would migrate all my unit tests from nunit to mstest. In the solution I have a nunit-config file, which looks like that:
<NUnitProject>
<Settings activeconfig="Web">
<Config name="Web" appbase="Web" configfile="web.config" binpathtype="Auto">
<assembly path="bin\Product.NUnit.ComponentA.dll"/>
<assembly path="bin\Product.NUnit.ComponentB.dll"/>
<assembly path="bin\Product.NUnit.ComponentC.dll"/>
</Config>
</NUnitProject>
The question is now, how could I do that in mstest?