Package This - Free tool to create .chm files

"Package This" is a GUI tool written in C# for creating help files (.chm and .hxs) from the content obtained from the MSDN Library or the TechNet Library via the MSDN Content Service. You select the content you want from the table of contents, build a help file, and use the content offline. You are making personalized ebooks of MSDN or TechNet content. Both help file formats also give full text search and keyword search.

The above paragraph is a excerpt from the tool's home page. I feel that it's a great way to compile whitepapers, help pages or reference material into a single .chm file while would be easy and organized to read and search as well.