The chm format document cannot be read

Method 1
1. Double-click the. CHM File.
2. In the "open file security warning" dialog box, click to clear the "always ask before opening this file" check box.
3. Click Open ".

Method 2
1. Right-click the CHM File and click "properties ".
2. Click "stop" or "unlock ".
3. Double-click the. CHM File to open the file.

1. If the file cannot be opened, you can restore the file association as follows:
1. Run ---> enter regsvr32 c: \ windows \ system32 \ hhctrl. ocx; OK, and re-associate the file.
2. Execute hh.exe in the Windows directory.
Sometimes the CHM file cannot be placed in the Chinese directory. Including the Chinese CHM name. Try to test the file. Change the Chinese name.

2.1.download hhupd.exeon the Microsoft website, install hh.exe, and run it.
2. Download hhupd.exe and run it. The size of this item is 461kb 3. Find the "hhctrl. ocx" file in c: \ windows \ system32, and run "regsvr32" C: \ windows \ system32 \ hhctrl. ocx...
The network cannot be resolved, and hhupd.exe cannot be downloaded. I will directly execute regsvr32 c: \ windows \ system32 \ hhctrl. ocx and it will be OK.

Solution 2:
1. Right-click to associate the "open mode" of the CHM File to \ windows \ hh.exe
2. Run regsvr32 itss. dll on the command line.
3. Run regsvr32 hhctrl. ocx on the command line.

3. It may be that a component necessary for HH. EXE has a problem. But I don't know what components will be used by HH. EXE, so I checked it online. Someone suggested registering hhctrl. ocx again. I found hhctrl. ocx IN THE SYSTEM directory and registered hhctrl. ocx again. Try: regsvr32 hhctrl. ocx. Still cannot read CHM normally.