When you open a help file (e.g. help.chm or the P2 Guidance Module p2gm.chm) the navigation tree shows in the left hand pane, but in the right hand pane you get a message such as:
Navigation Cancelled
Solution
Open Windows Explorer and navigate to the file.
Right-click the .chm file, select Properties.
Click the Unblock button.
2_3/kb2310003.txt · Last modified: 2017/06/22 13:13 (external edit)