Just a word of caution:
If you download and install DAQmx8.5, you may want to follow up with a disk defragragmentation (as is the case with most any Windows application)

I installed it on two XP machines with the drives defrag'd recently prior to install. Post DAQmx8.5 install, the drives were bleeding red pretty heavily.
-AK2DM
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"It’s the questions that drive us.”
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