Digital Multimeters (DMMs) and Precision DC Sources

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About PXI-4072 DMM Instrument driver

I'm working on PXI-4072 for capacitance measurement.
I notice that there are two files under the folder of "C:\Program Files\IVI\Bin": ividmm.dll and nidmm_32.dll. I guess, the file ividmm.dll must be IVI Class driver and nidmm_32.dll is the IVI Specfic driver. Am I right?
I open a CVI DMM example under "C:\Program Files\National Instruments\CVI81\samples\niDMM" and find nidmm.fp file. With this file, we can create custom DMM application or drivers. My question is : Is that true that nidmm.fp is an ivi specific driver?
Then coming to another question: IVI specific driver is kind of DLL. Can I directly utilize this DLL to program my DMM measurement application rather than through MAX logical name?

Thanks!
Jacky
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