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
Path:%SystemRoot%\system32\svchost.exe -k DcomLaunch -p
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DcomLaunch
  • 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.


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

Restore Default Startup Configuration of DCOM Server Process Launcher

1. Run the Command Prompt as an administrator.

2. Copy the commands below, paste them into the command window and press ENTER:

sc config DcomLaunch start= auto
sc start DcomLaunch

3. Close the command window and restart the computer.

The DcomLaunch service is using the rpcss.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 10 installation media.