Search code examples
windowswindows-servicesinstallation

How do I uninstall a Windows service if the files do not exist anymore?


How do I uninstall a .NET Windows Service if the service files do not exist anymore?

I installed a .NET Windows Service using InstallUtil. I have since deleted the files but forgot to run

 InstallUtil /u

first, so the service is still listed in the Services MMC.

Do I have to go into the registry? Or is there a better way?


Solution

  • You have at least three options. I have presented them in order of usage preference.

    Method 1 - You can use the SC tool (Sc.exe) included in the Resource Kit. (included with Windows 7/8)

    Open a Command Prompt and enter

    sc delete <service-name>
    

    Tool help snippet follows:

    DESCRIPTION:
            SC is a command line program used for communicating with the
            NT Service Controller and services.
    
    delete----------Deletes a service (from the registry).
    

    Method 2 - use delserv

    Download and use delserv command line utility. This is a legacy tool developed for Windows 2000. In current Window XP boxes this was superseded by sc described in method 1.

    Method 3 - manually delete registry entries (Note that this backfires in Windows 7/8)

    Windows services are registered under the following registry key.

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
    

    Search for the sub-key with the service name under referred key and delete it. (and you might need to restart to remove completely the service from the Services list)