Problem viewing MS Help documentation

Q:

When I double click to open the PDFNetAPI.CHM file, it opens and I can
see the Contents tab information, but not the information in the
display window. Please advice.
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A:

It is possible that CHM file is attempting to download a remote
resource (such as CSS or image file). We are going to take a look at
this issue.

If nothing else helps, for offline viewing, you can download PDFNet
API Reference in HTML format using the following link:
http://www.pdftron.com/downloads/PDFNetAPIRef_HTML.zip

To download CHM documentation the following link:
http://www.pdftron.com/downloads/PDFNetAPIRef_CHM.zip

The documentation can also be accessed online using the following
link:
http://www.pdftron.com/net/apiref.html