Downloaded yesterday on two XP Pro machines, working fine for me. Suggest you do a disk defrag after installation, it made my drive bleed red.
Release notes state it is for:
NI-DAQmx for PC Compatibles, version 8.5 for Windows Vista x64 (64-bit) / Vista x86 (32-bit) / XP / 2000
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"It’s the questions that drive us.”
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