Logical Disk Manager (dmserver) Service Defaults in Windows XP

Detects and monitors new hard disk drives and sends disk volume information to Logical Disk Manager Administrative Service for configuration. If this service is stopped, dynamic disk status and configuration information may become out of date. If this service is disabled, any services that explicitly depend on it will fail to start.

Default Settings

Startup type:
Windows XP HomeManual
Windows XP ProfessionalAutomatic
Windows XP Home SP1Manual
Windows XP Professional SP1Automatic
Windows XP Home SP2Manual
Windows XP Professional SP2Automatic
Windows XP Home SP3Manual
Windows XP Professional SP3Automatic
Display name:Logical Disk Manager
Service name:dmserver
Service type:share
Error control:normal
Path:%SystemRoot%\System32\svchost.exe -k netsvcs
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\dmserver

Default Behavior

Logical Disk Manager is a Win32 service. It won't start until the current user starts it in Windows XP Home SP0, Windows XP Home SP1, Windows XP Home SP2, Windows XP Home SP3. This service is starting automatically along with the operating system in Windows XP Professional SP0, Windows XP Professional SP1, Windows XP Professional SP2, Windows XP Professional SP3.

When the Logical Disk Manager service is started, it is running as LocalSystem in a shared process of svchost.exe. Other services and drivers are allowed to run in the same process. If the Logical Disk Manager fails to start, the technical information about the error is added to the Event Log. Windows XP startup should proceed, but a message box should be displayed informing the user that the dmserver service has failed to start.


Logical Disk Manager depends on the following system components:

The Logical Disk Manager Administrative Service depends on Logical Disk Manager.

Restore Default Startup Configuration of Logical Disk Manager

Before you begin doing this, make sure that all the services on which Logical Disk Manager depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt.

2. Depending on the version of your operating system, copy the commands below, paste them into the command window and press ENTER.

For Windows XP SP0 Home, Windows XP SP1 Home, Windows XP SP2 Home, Windows XP SP3 Home:
sc config dmserver start= demand

For Windows XP SP0 Professional, Windows XP SP1 Professional, Windows XP SP2 Professional, Windows XP SP3 Professional:
sc config dmserver start= auto
sc start dmserver

3. Close the command window and restart the computer.

The dmserver service is using the dmserver.dll file that is located in the C:\Windows\System32 directory. If the file is removed or corrupted, read this article to restore its original version from Windows XP installation media.