Hi Marc, Thanks for the help files. I managed to install them into RAD Studio 2009, but there are some problems: 1. You need to remove references to DTD files when building a help collection otherwise they don't install properly. See http://helpware.net/mshelp2/h2tutorial.htm#dtd for details on this...

I notice that TeeChart 2010 only comes with .hlp and .chm files. Where are the Microsoft Help (.HxC, .HxS, .HxT etc) formatted files required to integrate the help into RAD Studio?