A perfect use of this is to remove a service left over rootkitreveler or a psexec service like ASHDBDK linked to a non-existant temp file in the users temp directory. (sysinternals services)
Open a command shell (Start->Run->CMD or Start->Programs->Accessories->Command Prompt), then for each service entry, type:
SC DELETE
e.g. SC DELETE MQHIG
You can also use SC \\SERVER DELETE MQHIG to remove from a remote machine (As long as your authentication passes)
This exists on XP/2003 + (not on 2000, but you CAN remote remove from a 2000 machine if you run SC on an XP machine, etc.)
(Note: SC should be used with caution - it can remove any service!!!)
Here is the SC /? results for reference
DESCRIPTION:
SC is a command line program used for communicating with the
NT Service Controller and services.
USAGE:
sc [command] [service name]
...
The option has the form "\\ServerName"
Further help on commands can be obtained by typing: "sc [command]"
Commands:
query-----------Queries the status for a service, or
enumerates the status for types of services.
queryex---------Queries the extended status for a service, or
enumerates the status for types of services.
start-----------Starts a service.
pause-----------Sends a PAUSE control request to a service.
interrogate-----Sends an INTERROGATE control request to a service.
continue--------Sends a CONTINUE control request to a service.
stop------------Sends a STOP request to a service.
config----------Changes the configuration of a service (persistant).
description-----Changes the description of a service.
failure---------Changes the actions taken by a service upon failure.
qc--------------Queries the configuration information for a service.
qdescription----Queries the description for a service.
qfailure--------Queries the actions taken by a service upon failure.
delete----------Deletes a service (from the registry).
create----------Creates a service. (adds it to the registry).
control---------Sends a control to a service.
sdshow----------Displays a service's security descriptor.
sdset-----------Sets a service's security descriptor.
GetDisplayName--Gets the DisplayName for a service.
GetKeyName------Gets the ServiceKeyName for a service.
EnumDepend------Enumerates Service Dependencies.
The following commands don't require a service name:
sc
boot------------(ok | bad) Indicates whether the last boot should
be saved as the last-known-good boot configuration
Lock------------Locks the Service Database
QueryLock-------Queries the LockStatus for the SCManager Database
EXAMPLE:
sc start MyService