Nice error message, but could you please tell me which content files are missing/corrupted or how to fix this problem?

To fix this problem, I’ve attached the initial contents of the Help Viewer folder to this post.

• HelpViewer20-VS2012.zip (Help Viewer 2.0; Visual Studio 2012)

• HelpViewer21-VS2013.zip (Help Viewer 2.1; Visual Studio 2013)

Just extract to zip file to the local help store path. The path can be found in the registry (value name LocationPath):

• Visual Studio 2012: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Help\v2.0\Catalogs\VisualStudio11

• Visual Studio 2013: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Help\v2.1\Catalogs\VisualStudio12

If you can’t find the registry keys here, try HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Help\... (i.e. without the Wow6432Node).