Just to clarify, the 6723 does require DAQmx and current versions of Traditional DAQ are compatible with DAQmx, but unfortunately DAQmx and Traditional DAQ 6.9.3 and before will not work on the same machine. Working with a run time executable won't help either, it will require Traditional DAQ 6.9.3 to be installed.
What device are you using that requires 6.9.3?
Dennis, thanks for the link to the list of supported versions
Andrew, darn it! Just when I thought it was going to be plain sailing... I'm using a DAQCard1200 in a laptop, and I was planning to use the same laptop with a link cable to host a portable PXI test system with the PXI6723. Looks like I'm going to need a new laptop or a new version of DAQCard. Not very ecofriendly to have to get new hardware just to resolve software compatibility problems but c'est la vie.
thanks for the advice