NUnit assembly not found

I've used NUnit before, but not in a while, and never on this machine. I unzipped version 2.4.8 under `Program Files`, and I keep getting this error when trying to load my tests. Could not load file or assembly 'nunit.framework, Version=2.4.8.0, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77' or one of its dependencies. The system cannot find the file specified** In order to simplify the problem, I've compiled the most basic possible test file. ``` using NUnit.Framework; namespace test { [TestFixture] public class Tester { [Test] public void ATest() { Assert.IsTrue(false, "At least the test ran!"); } } } ``` I've added "C:\Program Files\NUnit-2.4.8-net-2.0\bin" to my PATH (and rebooted). Note that if I copy the test assembly into that folder, then ``` C:\Program Files\NUnit-2.4.8-net-2.0\bin>nunit-console test.dll ``` works, but ``` C:\Program Files\NUnit-2.4.8-net-2.0\bin>nunit-console c:\dev\nunit_test\test.dll ``` and ``` C:\dev\nunit_test>nunit_console test.dll ``` fail with the above error. Presumably I could get around this by copying the NUnit.Framework DLL file into my project's `bin` folder, but I don't remember having to do this in the past. Moreover, I get the same error in the GUI. Shouldn't the GUI know where the framework is located (that is, in the same folder)? I'm not using Visual Studio. I use the following line to compile the test project. ``` %windir%\Microsoft.NET\Framework\v2.0.50727\csc.exe /r:"C:\Program Files\NUnit-2.4.8-net-2.0\bin\nunit.framework.dll" /t:library /out:test.dll test.cs ``` I tried both the .msi and the .zip file with the same result.