This article was previously published under Q196661
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Windows NT 4.0 does not support Universal Serial Bus (USB) hostcontrollers. There are no plans to provide USB support in Windows NT 4.0 in a future service pack.
Microsoft Windows 2000, Microsoft Windows 98, and Microsoft Windows 95 OEM Service Release versions 2.1 and 2.5 provide support for the Open Host Controller Interface (OHCI) and Universal HCI (UHCI) specifications. Microsoft provides full supportfor USB under the new Windows Driver Model (WDM).
For more information about Microsoft Windows 98 support, see the followingarticle in the Microsoft Knowledge Base:
184400Supported Universal Serial Bus Host Controllers for Windows 98 and Windows Me
For more information about USB specifications, visit the followingMicrosoft Web site:
Microsoft Windows 2000 Server, Microsoft Windows 2000 Advanced Server, Microsoft Windows 2000 Professional Edition, Microsoft Windows NT Server 4.0 Enterprise Edition, Microsoft Windows NT Server 4.0 Standard Edition, Microsoft Windows NT Workstation 4.0 Developer Edition