Why Can't I Read The Help File?
Are you seeing this instead of the help file?
If so, it's because Windows has marked the help file as "unsafe" because it came from the Internet. Since a help file (a .CHM file) is really just HTML, the system wants to make sure you trust it before showing it to you.
When you see this dialog when open the CHM file:
Make sure you uncheck the "Always ask before opening file" checkbox. This will mark the file as safe, and you will be able to read the CHM file.