Create Windows Event Log

EVENTCREATE [/S system [/U username [/P [password]]]] /ID eventid
[/L logname] [/SO srcname] /T type /D description

Description:
This command line tool enables an administrator to create
a custom event ID and message in a specified event log.

Parameter List:
/S system Specifies the remote system to connect to.

/U    [domain\]user    Specifies the user context under which
                       the command should execute.

/P    [password]       Specifies the password for the given
                       user context. Prompts for input if omitted.

/L    logname          Specifies the event log to create
                       an event in.

/T    type             Specifies the type of event to create.
                       Valid types: SUCCESS, ERROR, WARNING, INFORMATION.

/SO   source           Specifies the source to use for the
                       event (if not specified, source will default
                       to 'eventcreate'). A valid source can be any
                       string and should represent the application
                       or component that is generating the event.

/ID   id               Specifies the event ID for the event. A
                       valid custom message ID is in the range
                       of 1 - 1000.

/D    description      Specifies the description text for the new event.

/?                     Displays this help message.

Examples:
EVENTCREATE /T ERROR /ID 1000
/L APPLICATION /D ”My custom error event for the application log”

EVENTCREATE /T ERROR /ID 999 /L APPLICATION
    /SO WinWord /D "Winword event 999 happened due to low diskspace"

EVENTCREATE /S system /T ERROR /ID 100
    /L APPLICATION /D "Custom job failed to install"

EVENTCREATE /S system /U user /P password /ID 1 /T ERROR
    /L APPLICATION /D "User access failed due to invalid user credentials"