Hello,
DIAdem version 3 was released many years before Microsoft came out with Windows XP. In order to make the DIAdem data acquisition engine run with Microsoft Windows XP, the engine had to be changed and extended.
This means that there is no way to run the DIAdem data acquisition engine under Windows XP. The non-data acquisition parts (everything but DAC and VISUAL) will work fine.
To be able to use the DAC and VISUAL features with Windows XP, you will have to update DIAdem to the latest version (currently version 9.0). I am not certain if there is a driver for the IOTech DaqBook ADC in DIAdem 9, but I can find out if you are interested in updating to this new release.
Let me knmow if I can help you more,
Otmar
Otmar D. Foehner