A Simple C# DLL – how do I call it from Excel, Access, VBA, VB6?
You can’t access a static member via COM interop. In fact your code doesn’t even compile, the method should be in a class. Here is how you can do it: [InterfaceType(ComInterfaceType.InterfaceIsDual)] [Guid(“01A31113-9353-44cc-A1F4-C6F1210E4B30”)] //Allocate your own GUID public interface _Test { string HelloWorld { get; } } [ClassInterface(ClassInterfaceType.None)] [Guid(“E2F07CD4-CE73-4102-B35D-119362624C47”)] //Allocate your own GUID [ProgId(“TestDll.Test”)] public class … Read more