The NiMxCtrl.dll which is the server for the mxctrllib objects is meant for National Instruments internal product use only. There is no documentation for developing 3rd party apps that utilize its functionality.
I'm not sure if you are talking about the IVI logical names listed in MAX or not, but if you want to know where you can get a list of these, they are in the ivi.ini file found in your C:\VXIpnp\Win95\niivi directory. Just parse this file to read all of your IVI logical names and setup parameters.
Jason F.
Applications Engineer
National Instruments
www.ni.com/ask