All the help files are installed under C:\Program Files\National Instruments\MeasurementStudioVS2003\Help
This is regardless of whether you have Measurement Studio on your machine or not.
Do you have this folder on your machine? The presence of this folder indicates that the help has been installed and registered on your machine.
You wont see a National Instruments entry under contents, just one for NI Measurement Studio ( even though you do not have Measurement Studio on there).
If you still do not have the help showing up under Visual Studio, something might be wrong with the installation. You can use an external Help2 viewer to view the contents of the individual hxs files. N
INETDAQmx.hxs has the API description and NINETDAQmxConcept.HxS has all the concept topics.
A good Help2 viewer can be found from
here.
Hope this helps
Bilal
Bilal Durrani
NI