If you want the help to be integrated with Visual Studio, you need to install MSDN. If you just want to view a particular .CHM file, you should be able to double click it to open it in the HTML help viewer if you have the viewer installed (in this case, some links may not work correctly since companion files are missing). If you do not have the HTML help viewer, go to
the MSDN web site, search for "hhupd.exe", download it, and run it to install the viewer.
Hope that helps.
Tony
Measurement Studio