I didn't find your reply helpful or friendly Leon.
You know nothing about me or my organisation.
I have been using both N drive (which everyone in the office has access to) and my C drive to test how to do this so I can inform people how to go about it. I can't get it to work. I can open the chm from either drive, not just a specific topic.
I am well aware that the security restrcitions are real as I have dealt with these for both internal and external clients.
I will be informing anyone who wants to link from a Word document to a specifc topic that it can be done, however I personally have not been able to get it to work.
Perhaps see if this is any help. You might need the ms-its: or mk@MSITStore: syntax. Although I think I remember reading somewhere that by design this opens the single topic in a browser window, rather than the HTMLHelp Viewer.
http://www.helpware.net/htmlhelp/linktochm.htm