Here's an odd problem and workaround. Apparently Microsoft closed some security problems with an implementation that prevented .chm files from being accessed without proper installation/configuration/access. I had installed Rollback Rx to handle system backup and roll back if needed. However, when I tried to use its HELP it presented me with the HTML window to view the help with proper Contents/Index/Search on the left side, but an error message on the right side: Navigation to the Webpage was canceled. This led to 3-4 hours searching the Internet with no permanent solution that fixed the problem.
Some differences: My .chm file (help.chm) was on the local PC (mine of course) under rollback's main directory (Shield). The solution below applies to that. However, if your .chm file resides on your network server or the Internet, the workaround below will not work and my suggestion is to contact the application owner to get it corrected.
Workaround: Sometimes right-clicking the .chm file, selecting properties, and hitting the UNBLOCK button will resolve the problem. In my case, the system made it look like it took the UNBLOCK, but subsequent display of properties showed it did NOT. So, copy the .chm file to a different directory, e.g., My Documents, and now do the UNBLOCK. Display properties a 2nd time to ensure it took. If it did, clicking on the file will bring up the HELP window and everything will be working properly.
Note: this did NOT resolve Rollback Rx program code. Only the developers can fix it permanently by properly coding the file and installing/configuring it to run on your local machine.
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