Currently, no NI-DAQmx hardware is supported in Windows XP Mode on Windows Seven. This is because the way that Windows XP Mode is implemented does not play well with high performance hardware. PCI/PXI devices will definitely not work and USB devices are very unlikely to work. Ethernet based devices may work, depending on the device. NI-DAQmx is not officially supported on any virtualized OS.
Seth B.
Principal Test Engineer | National Instruments
Certified LabVIEW Architect
Certified TestStand Architect