Error Reading From DataSocket server Using DSReader Microsoft Visual C# .NET

I want to run the example program 'dsreader' from http://zone.ni.com/devzone/cda/epd/p/id/1139.

This example demonstrates how to use the Measurement Studio 6.0 CWDataSocket ActiveX control to create a DataSocket Reader/Writer in Visual C#. With this application, you can write a numeric value to a target source with the DataSocket Writer and read that value with the DataSocket Reader.

When I run dsreader in Visual C# .NET I get the following error:

Error    1    'AxCWDSLib.AxCWDataSocket' does not contain a definition for 'CtlUpdate'    C:\........\DataSocket Reader\Form1.cs    301    13    DSReader

Any ideas would be welcome.

Ken35