Hi Charles,
Thanks for using Syncfusion products.
We have also had the same experience in VS 2008 help after installing the Syncfusion documentation.
We have searched through MSDN and we found one solution for this.
Could you please download and install the H2viewer from below location?
http://helpware.net/mshelp2/h2viewer.htm After installing the setup, please open the H2viewer from below location
Start->All Programs->Helpware->H2Viewer->H2Viewer
After open the H2Viewer, the “Open Namespace” Dialog box will appear.
Select which help you want to view.
Eg.
Syncfusion Help File: Syncfusion Essential Studio Help.
MS Help on Help: Microsoft Document Explorer Help ENU
Please let me know if you have any queries.
Regards,
Vinoth M