I am attempting to use the IVI DMM ActiveX Control within Visual Basic. When I go to verify that my connection to the DMM is successful, I get a "Failure to load driver module."
What version of DMM so you have. If you are using NI-DMM 2.0 then you will need to modify the windows registery by adding a few keys. This is documented at the bottom of the DMM readme file.
If this is not the case please provide more details. What instrument are you communicating with? Maybe attach a simplified version of your project program.