Can anyone point me to a tutorial or the url of an msdn page that explains how to tie compiled HTMLHelp to Access? I want to add context sensative help to application forms. <br><br>I've have the application involved about half done (files and forms, but not reports), and have written some sample html pages and compiled them. I've assigned the name of the .chm file to the appropriate form property, and the html page id# to the appropriate control property, but when I try to invoke the .chm file I get an error message indicating the 'help file is corrupted or not a valid help file'.<br><br>I'm guessing this means I need to set a property somewhere to permit Access to see .chm as a valid help format instead of the older version. I guess I need better glasses, but I can't find the switch.<br><br>Thanks for any help.