The AT-MIO-16E-1 (6070E) will work in Windows XP. You need to download our latest NI-DAQ driver version 7.3. You can see a list of our DAQ hardware and what version of DAQ is required for particular operating systems at:
http://www.ni.com/support/daq/versions.htm
You can download NI-DAQ 7.3 at:
http://digital.ni.com/softlib.nsf/websearch/BEC182021CEB566C86256EEE00696562?opendocument&node=132060_US