Due to a Microsoft bug https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=247057 the VC++ and VC2005 demo programs for the K8055 and K8061 card doesn’t run (only on WinXP). The problem is that through automatic updates Microsoft changed the way how the WinXP operating system handles the manifest file that is include with the projects. If you have problems running the demo programs just delete the manifest file or change the extension.