Learning MicroStation Addins Step by Step[4] Error

Hello,

I encountered error in Procedure 7. Its all about the xml file. When I tried to key-in csaddins it tells Uknown key-in or commands. Can someone help me on this matter or any suggestion?

Please see link: http://communities.bentley.com/communities/other_communities/bdn_other_communities/b/bdn-blog/archive/2011/09/29/learn-microstation-addins-step-by-step-4.aspx

Thank you.

Best Regards,

Aldrin