Can't open .CHM help files in XP

J

Jack Steehler

I understand .CHM files to be compiled HTML help files.
However, a heritage program (ChemWindow) has set the
system to open all .chm files in ChemWindow. I need to
find out what program SHOULD open .chm files, and exactly
how to change all settings to match that program.

Note that I tried changing the program associated
with .chm file in control panel/folder options/file
types, (to IE) but that didn't work, and besides, the
system reset that setting to ChemWindow the next time I
rebooted...

Thanks for any help.
Jack Steehler
 
K

Kelly

Hi Jack,

BUG: No Text or Access Violation Error When Reading a Help File
http://support.microsoft.com/?kbid=319247

Its possible your CHM file association is corrupt.

Go to Start/Run/Regedit and navigate to this key:

HKEY_CLASSES_ROOT\chm.file\shell\open\command

The Default value for this entry should be: "C:\WINDOWS\hh.exe" %1
(you may need to make changes if Windows is not on C, or if your XP
installation is not in the Windows folder).

Next, go to: HKEY_CLASSES_ROOT\.chm

The Default value for this entry should be: chm.file

To modify a value, double click on the Default entry and enter the values as
shown.

If the above doesn't help: Go to Start/Run and type in:
%userprofile%\Application Data\Microsoft\HTML Help and rename it.
 

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