I spoke with another one of our other Applications Engineers who spoke with either yourself or another person with the same question on the phone today. He indicated that there is no smaller set of DLLs to use as drivers for this code, and that the solution reached on the phone was to make the drivers available on a central server so that they didn't have to be distributed directly with the application. People could just install them from the server instead.
If this is not an option, the full install files for the NI-DAQ and NI-DMM drivers would have to be included with the built appliction and installed by the end user. Or perhaps instructions could be included with the application about where to download the drivers from the NI website (www.ni.com/downloads).
Sincerely,
Ross C
National Instruments