Hi,
i'm only a beginner, but this worked for me:
in CVI, go to the following option
Build->Target Settings
In the window click on Type Library
Enable 'Add Type Library to dll'
Enable 'Include links to help file'
Enter the name of the function panel being used.
Press OK.
I also have the .hlp file in the same folder as the dll, but I think the first time you access it in TestStand if it cant find the help file in any of its folders it asks for location.
hope that helps
Nigel