I have code like this: 

```
class Program
    {
        static void Main(string[] args)
        {
            Assembly myAsm = Assembly.LoadFile(@"c:\Some.dll");
            Type myService = myAsm.GetType("SomeClass");
            String s = (String) myService.InvokeMember("SomeMethod", BindingFlags.InvokeMethod  | BindingFlags.Public,
    null, null, new object[] {"MyParam"});
        }
    }

```

In Some.Dll there is public static Method SomeMethod with String param returning String 
but I get method missing Error...