Assembly _oAssembly = Assembly.LoadFile("myDLL.dll");
myNamespace.myClass _oGetSomething = new myNamespace.myClass();
string _sGetSomething = _oGetSomething.GetSomething.ToString();

private string _sGetSomething = "HALLO";
public string GetSomething {
get { return _sGetSomething; }
}