PCmurphy--
The NI PXI-8145RT controller will be upgradable (theoretically) to any flash drive available. So if you have a hard drive big enough for Windows to operate on, theoretically, it would be possible to install Windows NT on the system. However, it is not a supported application to install a Windows operating system on a RT controller, and it hasn't been tested here at National Instruments. It is possible that some of the peripherals in the controller do not have drivers for the Windows environment. I recommend the 8171 series controller for your application.
Anthony Bacak
National Instruments
Applications Engineering