Cannot open chm files

[Will Waller]

Whenever I try and open a help file I get an error dialog
with a message like the following:

Cannot open the file:
mkMSITStore:C:\WINDOWS\Help\WINDOWS.CHM

XP will not allow me to install hhupd.exe. How can I
reinstall the help system, or correct the current
installation?

 

[David.]

> Whenever I try and open a help file I get an error dialog
with a message like the following:

Cannot open the file:
mkMSITStore:C:\WINDOWS\Help\WINDOWS.CHM

XP will not allow me to install hhupd.exe. How can I
reinstall the help system, or correct the current
installation?

Go "start" "run": regsvr32 "c:\windows\system32\hhctrl.ocx".

The problem was the same for me...

David.