Microsoft KB Archive/932875

= The volume control keys do not work as expected on the Wireless Optical Desktop 1000 keyboard =

Article ID: 932875

Article Last Modified on 2/20/2007

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APPLIES TO


 * Microsoft Wireless Optical Desktop 1000

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Important This article contains information about how to modify the registry. Make sure that you back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows registry



SYMPTOMS
The volume control keys do not work as expected on the Microsoft Wireless Optical Desktop 1000 keyboard.



CAUSE
This issue occurs if the Human Interface Device (HID) services are not turned on.



RESOLUTION
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

To resolve this issue, turn on HID services on the computer. To do this, follow these steps:  Click Start, click Run, type Regedit, and then click OK. Locate and then click the following registry key:

 Expand System. Expand ControlSet001. Expand Services, and then click HidServ. In the right pane, right-click Type, and then click Modify.</li> In the Value data box, verify that the value is set to 20, and then click OK. If the value is not 20, type 20 in the Value data box, and then click OK.</li> Expand HidServ, and then click Parameters.

Note If the Parameters registry key does not exist, follow these steps: <ol style="list-style-type: lower-alpha;"> Click HidServ.</li> On the Edit menu, point to New, and then click Key.</li> Type Parameters, and then press ENTER.</li></ol> </li> In the right pane, right-click ServiceDll, and then click Modify.

Note If the ServiceDll registry value does not exist, follow these steps: <ol style="list-style-type: lower-alpha;"> Click Parameters.</li> On the Edit menu, point to New, and then click Expandable String Value.</li> Type ServiceDll, and then press ENTER.</li></ol> </li> In the Value data box, verify that the value is set to %SystemRoot%\System32\hidserv.dll. If the value is not %SystemRoot%\System32\hidserv.dll, type %SystemRoot%\System32\hidserv.dll in the Value data box, and then click OK.</li> Repeat steps 5 through 10 for each registry key that contains &quot;ControlSet&quot; in the key name. For example, if there is a registry key named CurrentControlSet or ControlSet002, click CurrentControlSet or click ControlSet002. Then repeat steps 5 through10.</li> Exit Registry Editor, and then restart the computer.</li></ol>

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MORE INFORMATION
For more information about an issue in which audio settings are reset when you change audio or sound hardware, click the following article number to view the article in the Microsoft Knowledge Base:

266680 User default sound settings are restored to the Windows default settings

For more information about an issue in which volume settings do not persist when you restart the computer, click the following article number to view the article in the Microsoft Knowledge Base:

273033 Volume control settings may not persist after restarting your computer

Keywords: kbtshoot kbprb KB932875

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