To install the USB driver required for the NPF Nitrous Controller click on the link below.
***Before installing the USB driver, make sure that your USB device is not connected to your PC.***
The USB driver is compatible with Windows XP/Vista/7. It will not install on older PCs running Windows 98 or ME. For Windows Vista, you must disable the User Account Control (UAC) during installation as described in the Vista UAC Tech Note. When the File Download dialog box appears, click on "Run this program from its current location." Ignore any security warnings and click on Yes to continue. After installation of the driver is complete, connect the USB device. The Windows Found New Hardware Wizard will appear and complete installation of the USB device. Then refer to the COM Port Configuration section in the instructions for your device to properly configure its USB interface using Device Manager.