// Compiler options: -r:MyAssembly01=test-externalias-00-lib.dll using System; namespace NS { extern alias MyAssembly01; public class MyClass { public static int GetInt () { return MyAssembly01::GlobalClass.StaticMethod (); } } } public class Test { public static int Main () { if (NS.MyClass.GetInt () != 1) return 1; return 0; } }