.assembly extern mscorlib { } .assembly 'gtest-exmethod-45-lib' { .hash algorithm 0x00008004 } .module 'gtest-exmethod-45-lib.dll' .class public abstract auto F { .custom instance void class [mscorlib]System.Runtime.CompilerServices.ExtensionAttribute::'.ctor'() = (01 00 00 00 ) .method public hidebysig specialname rtspecialname instance void .ctor() cil managed { ldarg.0 call instance void [mscorlib]System.Object::.ctor() ret } .method public hidebysig static void TestExt(string s) cil managed { .custom instance void class [mscorlib]System.Runtime.CompilerServices.ExtensionAttribute::'.ctor'() = (01 00 00 00 ) ret } }