DAQExpress is only supported on 64-bit versions of Windows, and can be installed from the DAQExpress download page, the NI-DAQmx Driver DVD included with supported DAQ hardware, or through the NI Package Manager.
Additional information about known issues, patches, and system compatibility may be found on the readme page.
NI recommends you activate NI DAQExpress. This is completed by signing into the DAQExpress software using your NI user profile information.
Logging in provides full functionality from the software free of interruption if you are connected to the Internet.
DAQExpress is a free companion product to use with NI Data Acquisition hardware, but it does require periodic communication with your NI.com user account to maintain its full functionality.