• Why can't I read the (chm) help files? It gives me an error "Action canceled"?
  
  Computers using Windows XP Service Pack 2 or Windows Server 2003 Service Pack 1 will place a block on compiled help files (*.chm) that are downloaded from the Internet. The block will interfere with the operation of the help file and an ‘Action canceled’ or ‘The page cannot be displayed’ error will be displayed in the topic pane. The problem is caused by security features introduced in the service packs designed to reduce vulnerabilities in HTML help.
  Workaround: Instead of left-clicking on the link, right-click and choose "Save Target As...". After downloading the document, open it from the location where it was saved. If a security warning appears then in order to view the help documents properly, the checkmark must be cleared from the ‘Always ask before opening this file’ check box. The files will then open properly from the PC. Alternatively, right-click on the file you want to open, click Properties, and then click Unblock.