>public class CodeMine >{ > [DllImport(@"C:\Old Drive\CM\Common50\CodeMine.fll", EntryPoint="@DispatchAPI@4")] > public static extern int cmGetFLLVersion(); >} >>Then, in a method of another class (in the same namespace, I have:
>// The next line throws the error.
>int version = CodeMine.cmGetFLLVersion();
>MessageBox.Show(version.ToString());
>
>I get:>An unhandled exception of type 'System.NullReferenceException' occurred in ActiveDirectory.exe > >Additional information: Object reference not set to an instance of an object. >>on the line where I have the comment.