Help: Event Log Event Number

I used the sample from MSDN to log an event in VB using the API functions (code follows), but I can't seem to find a way to register the Event ID. As such I get the following message in my event log saying the event id can not be found and then the message.

The description for Event ID ( 1000 ) in Source ( Project1 ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. The following information is part of the event: Test Message.

Does anyone know how to log an event with a better message?
I do not want to use App.LogEvent

Thank you

David Stephen

Option Explicit

'Event Log
Private Declare Function RegisterEventSource Lib "advapi32.dll" Alias "RegisterEventSourceA" (ByVal lpUNCServerName As String, ByVal lpSourceName As String) As Long
Private Declare Function DeregisterEventSource Lib "advapi32.dll" (ByVal hEventLog As Long) As Long
Private Declare Function ReportEvent Lib "advapi32.dll" Alias "ReportEventA" (ByVal hEventLog As Long, ByVal wType As Integer, ByVal wCategory As Integer, ByVal dwEventID As Long, ByVal lpUserSid As Any, ByVal wNumStrings As Integer, ByVal dwDataSize As Long, plpStrings As Long, lpRawData As Any) As Boolean
Private Declare Function GetLastError Lib "Kernel32" () As Long
Private Declare Sub CopyMemory Lib "Kernel32" Alias "RtlMoveMemory" (hpvDest As Any, hpvSource As Any, ByVal cbCopy As Long)
Private Declare Function GlobalAlloc Lib "Kernel32" (ByVal wFlags As Long, ByVal dwBytes As Long) As Long
Private Declare Function GlobalFree Lib "Kernel32" (ByVal hMem As Long) As Long

Private Const EVENTLOG_SUCCESS = 0
Private Const EVENTLOG_ERROR_TYPE = 1
Private Const EVENTLOG_WARNING_TYPE = 2
Private Const EVENTLOG_INFORMATION_TYPE = 4
Private Const EVENTLOG_AUDIT_SUCCESS = 8
Private Const EVENTLOG_AUDIT_FAILURE = 10

Public Sub LogEvent(sString As String, iLogType As Integer, iEventID As Long)
Dim bRC As Boolean
Dim iNumStrings As Integer
Dim hEventLog As Long
Dim hMsgs As Long
Dim cbStringSize As Long
hEventLog = RegisterEventSource("", App.Title)
cbStringSize = Len(sString) + 1
hMsgs = GlobalAlloc(&H40, cbStringSize)
CopyMemory ByVal hMsgs, ByVal sString, cbStringSize
iNumStrings = 1
Call ReportEvent(hEventLog, iLogType, 0, iEventID, 0&, iNumStrings, cbStringSize, hMsgs, hMsgs)
Call GlobalFree(hMsgs)
DeregisterEventSource (hEventLog)
End Sub

Private Sub Command1_Click()
LogEvent "Test Message", 1, 100
End Sub