Microsoft KB Archive/833775

= You cannot eject your portable computer from its docking station =

Article ID: 833775

Article Last Modified on 10/30/2006

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition

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SYMPTOMS
In Microsoft Windows 2000, when you click Start, and then click Eject PC to eject your portable computer from its docking station, you may receive the following error message:

You cannot eject your computer because one of the devices in the docking station, 'Microsoft ACPI-Compliant Control Method Battery', cannot be stopped right now. Try closing all applications and ejecting the computer again later.



CAUSE
This behavior may occur if all the following conditions are true, in the order that they are presented:
 * 1) You insert your computer into the docking station.
 * 2) Within approximately 20 seconds or less, you eject your computer from the docking station.

Each undock, dock, and redock operation is associated with specific events that must be processed before each operation can complete successfully. The symptoms that are described in the &quot;Symptoms&quot; section of this article are related to the time that it takes to process these events and these notifications. If a request to eject the computer occurs before a redock operation is completed, the eject operation cannot complete successfully. By design, Windows 2000 works this way.

The processing time for each operation depends on several factors, including the number of programs that are installed on the computer and the number of devices that are attached to the docking station.



WORKAROUND
To work around this behavior, click OK in the error message dialog box, and then eject your computer from the docking station later.



MORE INFORMATION
For more information about undocking portable computers, see Windows 2000 Help. To do so, click Start, and then click Help. Click the Search tab, type undock a portable computer in the Type in the word(s) to search for box, and then click List Topics to view the topics that are returned.

For additional information about docking your portable computer with or undocking your portable computer from a docking station while the computer is fully powered, click the following article number to view the article in the Microsoft Knowledge Base:

257544 Hot Docking Support in Windows 2000

Keywords: kbprb KB833775

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