I'm not sure if this was related to my recent install of XP SP3 (I haven't done anything else of note recently...), but I found out today that I was unable to view CHM files on my system. Most of my manuals are stored in CHM format, so, this was something of a pain. While the file itself opened fine, and the content list pane was accessible, the content pane was not; I instead was greeted with a "The page cannot be displayed" error message.
Googling around led me to this M$ KB article which detailed the following fix along with a plethora of warnings:
- Open up notepad.
- Copy and paste the following:
- Save the file on your desktop as something like
- Double click the file on your desktop to merge new settings into your registry.
- Test your CHM file, and you will very likely find that it's been fixed.
As the knowledge-base article repeatedly states, doing this also lowers the security of (IE in) your system; i.e. this was actually done for a reason. You might want to read through that KB article and also use UrlAllowList to reduce any side-effects. You will also very likely want to only apply the above fix after exhausting all other avenues. Bewarned :)
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