
chm fileġ.Ĝheck for any hash/sharp symbol in the filename. Right click the file and select 'Properties' Hence you just need to unblock them in many instances to view them.ġ. These files coming from third party server are by default blocked. I have found that you do not need any software to view the file. Do not enable security zones that you are unsure of.Do you see 'Page not displayed' or 'Navigation to the web page was cancelled' when you try to open a. Warning: Enable only those security zones that you trust. The values settings areįor most CHM files, the value of 1 should be enough to allow use without opening up access from/to remote CHM files in email/internet locations.

The CHM file is in the restricted Internet zone When a CHM file that you are trying to access is stored remotely, e.g.

Once the CHM file has been unblocked, the Unblock button disappears.

Click on the Unblock button immediately below the Advanced button on the General page. Solution: Run Windows Explorer, right-click on the CHM file, and select Properties from the popup menu. Additional information is available here.

Also avoid using ‘?’, ‘&’, and ‘+’ characters in directory names.Ī security update for Windows XP® may block access to CHM files Windows XP® security update blocks active content in CHM files to protect your system security. Solution: Remove the ‘#’ (hash) character from the directory name. Your CHM files are stored in the folder with ‘#’ (hash) character in the path Many C# developers discovered that their documentation and e-books in CHM format cannot be read because they were storing their CHM files in the directories like ‘C:\E-books\C#\’ The hash character signifies an anchor in HTML so the CHM viewer fails to resolve the path properly and to retrieve the content. Solution: Run “regsvr32 hhctrl.ocx” command from the command line to register the library in the system. The HTML Help (CHM file) viewer component is not properly registered on your PC The system file \system32\hhctrl.ocx may get missing, corrupted, or unregistered.
