Have you tried to download the help support file from Microsoft? When you launch that help, instead of seeing help you'll got some message about help is designed for previous Windows versions and your current version doesn't support winhelp something. Try download winhelp from Microsoft (here's link for download page: http://www.microsoft.com/downloads/en/details.aspx?displaylang=en&FamilyID=258aa5ec-e3d9-4228-8844-008e02b32a2c
) Then it should work. Wish you luck.