Although PDS is shipped for use under Windows XP, Beta testing of ther Windows 7 installer is nearing completion. Use of PDS under Winows 7, Vista and even Windows under Mac OSX is now wide spread among users and will soon be officially supported by Crownhill. However until official support is provided, for those testing under Windows 7, here is a link to WINDOWS 7 Microsoft Signed Drivers for the USB License key.
There are many posts on our support forums that will assist users that are having issues with thier Windows installation and the USB drivers. The drivers DO WORK correctly Windows can report issues, please don't assume its a driver issue or USB key issue, look at the Windows installation. Antivirus etc first.
examples post on the forum related to drivers: USB-Key-drivers-not-installing