Comment 9 for bug 860558

The upstream developers confirm that this bug exists and will work on it. As a temporary measure, I'll add the two assemblies to those supplied by AssemblyResolver.

However, the change you made won't do it because it merely includes .exe files in the directory searched in addition to dlls. However, NUnit does not use assemblyResolver on the directory containing pnunit-agent or the one with pnunit.framework. It only adds the lib and addins directories to AssemblyResolver.

However, these two assemblies can be handled specifically, using their known locations.

I go into this detail in case you are using a non-standard layout of the nunit files. If so, the fix won't work for you.