NUnit 2 adapter for running tests in Visual Studio 2012 and newer. Works with NUnit 2.x, for 3.x tests use the NUnit 3 adapter.
The NUnitTestAdapter extension works with the Visual Studio Unit Test window to allow integrated test execution under Visual Studio 2012, 2013, 2015 and 2017.
The latest version, 2.0, is based on NUnit 2.6.4 and is compatible with tests developed using NUnit 2.0 through 2.6.4. It supports all versions of VS2012, VS2013, VS2015 and VS2017. You can find the release notes here