Unfortunately, the logger is under Vista (certainly not in the 64-bit version) does not install. The software can be installed, but the drivers for the hardware will not be taken from the supplied CD. On my "old" XP computer everything went flawlessly, as indicated. The logger itself is functioning properly, the switching intervals are highly variable, the evaluation software is handy, especially the ability to prepare the data for Excel. B. Richter climate data logger LOG32 with USB-PC Connection