NEC 官方網站要使用者去 windows update...
http://www.necel.com/usb/en/product/upd720101.html

To download the driver software.

Windows® XP
USB2.0 driver are supported in Service Pack 1(SP1) for Windows® XP,which is available through Microsoft®Windows® Update

Windows® 2000
USB2.0 driver are supported in Service Pack4 (SP4) for Windows 2000, which is available through Microsoft®Windows® Update or Microsoft®Windows® Update Catalog

Windows® 98/SE/Me
Contact your motherboard or PCI/PC card manufacturer.