You may have to restart the computer after you apply this update.

To use the update in this package, you do not have to make any changes to the registry. To apply this update, you must be running one of the following operating systems:įor more information about how to obtain a Windows XP service pack, click the following article number to view the article in the Microsoft Knowledge Base:ģ22389 How to obtain the latest Windows XP service packįor more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:ĩ35791 How to obtain the latest Windows Vista service packįor more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:ĩ68849 How to obtain the latest service pack for Windows Server 2008 Note If the update is installed, you should find Microsoft WinUsb 1.9 in the list of installed updates. To verify that the update is successfully installed on a computer that is running Windows XP, follow these steps:Ĭlick Add or Remove Programs, and then click Show Updates. Note If the update is installed, you should find WinUSB v1.9 (KB971286) in the list of installed updates. To verify that the update is successfully installed on a computer that is running Windows Vista or Windows Server 2008, follow these steps:Ĭlick Start, and then click Control Panel.Ĭlick Programs and Features, and then click View Installed Updates. General information about WinUSB More Information During driver package installation, the package checks the computer to determine what version of WinUSB is currently installed, and then the package updates the files to 1.9 if they are an older version.įor more information about WinUSB and the versions that are included with various versions of Windows, visit the following Microsoft Developer Network (MSDN) website: Note WinUSB driver packages that are built by using Windows Driver Kit for Windows 7 can automatically redistribute and install version 1.9 of the files. The WinUSB architecture consists of a kernel-mode driver (Winusb.sys) and a user-mode dynamic link library (Winusb.dll).

Windows USB (WinUSB) is a generic driver for USB devices that was developed at the same time as Windows Driver Foundation (WDF) for Windows XP Service Pack 2 (SP2).

This article introduces an update that installs version 1.9 of the WinUSB driver file and of the WinUSB library file on Windows operating systems.

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