DCOM Server Process Launcher (DcomLaunch) Service Defaults in Windows 10

The DCOMLAUNCH service launches COM and DCOM servers in response to object activation requests. If this service is stopped or disabled, programs using COM or DCOM will not function properly. It is strongly recommended that you have the DCOMLAUNCH service running.

Default Settings

Startup type:Automatic
Display name:DCOM Server Process Launcher
Service name:DcomLaunch
Service type:share
Error control:normal
Group:COM Infrastructure
Object:LocalSystem
Path:%SystemRoot%\system32\svchost.exe -k DcomLaunch
File:%SystemRoot%\system32\rpcss.dll
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DcomLaunch
Privileges:
  • SeAssignPrimaryTokenPrivilege
  • SeAuditPrivilege
  • SeChangeNotifyPrivilege
  • SeCreateGlobalPrivilege
  • SeDebugPrivilege
  • SeImpersonatePrivilege
  • SeIncreaseQuotaPrivilege
  • SeTcbPrivilege
  • SeBackupPrivilege
  • SeRestorePrivilege

Default Behavior

DCOM Server Process Launcher is a Win32 service. In Windows 10 it is starting automatically when the operating system starts. Then the DCOM Server Process Launcher service is running as LocalSystem in a shared process of svchost.exe along with other services. If DCOM Server Process Launcher fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the DcomLaunch service has failed to start due to the error.

Dependencies

While DCOM Server Process Launcher is stopped, disabled or working incorrectly, the following services do not start:

Restore Default Startup Configuration for DCOM Server Process Launcher

1. Select your Windows 10 edition and release, and then click Download.

2. Save the Win10_DcomLaunch_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The DcomLaunch service is using the rpcss.dll file that is located in the %WinDir%\system32 folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.