Windows NT 4.0 does not support Universal Serial Bus

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This article was previously published under Q196661

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SUMMARY

Windows NT 4.0 does not support Universal Serial Bus (USB) host controllers. 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 following article in the Microsoft Knowledge Base:

184400 (http://support.microsoft.com/kb/184400/EN-US/ ) Supported Universal Serial Bus Host Controllers for Windows 98 and Windows Me

For more information about USB specifications, visit the following Microsoft Web site:

http://www.microsoft.com/whdc/connect/usb/default.mspx (http://www.microsoft.com/whdc/connect/usb/default.mspx)