Hi Florent,
sorry that I have not gotten to answer to you sooner. Which version of the software do you have?
The latest software has the USB driver for Vista. You will have to actually do the alternate installation in which you browse to the folder where the USB-driver is in. Typically: C:\Program Files\Weatronic\Dual Receiver Tools\USB_Driver
Hope this helps. Else email Support in Germany under:
http://www.weatronic.com/cms/index.p...t&Itemid=3
Thanks,
Gerhard