security writing windows application log

The following (vb.net code) works great on 2000 and XP but not on Vista:
Dim ev As New EventLog("Application", System.Environment.MachineName, "MyProgramName")
Dim LogText As String = "Hello world"
Dim EntryType As System.Diagnostics.EventLogEntryType = EventLogEntryType.Information
ev.WriteEntry(LogText, EntryType, LogEventID)
ev.Close()

The following excpetion is thrown on Vista:

System.Security.SecurityException: The source was not found, but some or all event logs could not be searched. Inaccessible logs: Security. at System.Diagnostics.EventLog.FindSourceRegistration(String source, String machineName, Boolean readOnly) at System.Diagnostics.EventLog.SourceExists(String source, String machineName) at System.Diagnostics.EventLog.VerifyAndCreateSource(String sourceName, String currentMachineName) at System.Diagnostics.EventLog.WriteEntry(String message, EventLogEntryType type, Int32 eventID, Int16 category, Byte[] rawData) at System.Diagnostics.EventLog.WriteEntry(String message, EventLogEntryType type, Int32 eventID)

Any ideas on what extra is needed for Vista?
Thanks in advance, Rob

Did you try running this elevated (as elevated admininstrator) ?
-- Regards, Yuriy
This posting is provided "AS IS" with no warranties, and confers no rights. "Rob Latour" wrote in message

The following (vb.net code) works great on 2000 and XP but not on Vista:
Dim ev As New EventLog("Application", System.Environment.MachineName, "MyProgramName")
Dim LogText As String = "Hello world"
Dim EntryType As System.Diagnostics.EventLogEntryType = EventLogEntryType.Information
ev.WriteEntry(LogText, EntryType, LogEventID)
ev.Close()

The following excpetion is thrown on Vista:

System.Security.SecurityException: The source was not found, but some or all event logs could not be searched. Inaccessible logs: Security. at System.Diagnostics.EventLog.FindSourceRegistration(String source, String machineName, Boolean readOnly) at System.Diagnostics.EventLog.SourceExists(String source, String machineName) at System.Diagnostics.EventLog.VerifyAndCreateSource(String sourceName, String currentMachineName) at System.Diagnostics.EventLog.WriteEntry(String message, EventLogEntryType type, Int32 eventID, Int16 category, Byte[] rawData) at System.Diagnostics.EventLog.WriteEntry(String message, EventLogEntryType type, Int32 eventID)

Any ideas on what extra is needed for Vista?
Thanks in advance, Rob

Turns out I had to add an 'event log source'; this was not required in 2000 or xp but appears to be required in vista.
thanks, Rob
"Yuriy Shkolnikov [MSFT]" wrote in message

Did you try running this elevated (as elevated admininstrator) ?
-- Regards, Yuriy
This posting is provided "AS IS" with no warranties, and confers no rights. "Rob Latour" wrote in message The following (vb.net code) works great on 2000 and XP but not on Vista:
Dim ev As New EventLog("Application", System.Environment.MachineName, "MyProgramName")
Dim LogText As String = "Hello world"
Dim EntryType As System.Diagnostics.EventLogEntryType = EventLogEntryType.Information
ev.WriteEntry(LogText, EntryType, LogEventID)
ev.Close()

The following excpetion is thrown on Vista:

System.Security.SecurityException: The source was not found, but some or all event logs could not be searched. Inaccessible logs: Security. at System.Diagnostics.EventLog.FindSourceRegistration(String source, String machineName, Boolean readOnly) at System.Diagnostics.EventLog.SourceExists(String source, String machineName) at System.Diagnostics.EventLog.VerifyAndCreateSource(String sourceName, String currentMachineName) at System.Diagnostics.EventLog.WriteEntry(String message, EventLogEntryType type, Int32 eventID, Int16 category, Byte[] rawData) at System.Diagnostics.EventLog.WriteEntry(String message, EventLogEntryType type, Int32 eventID)

Any ideas on what extra is needed for Vista?
Thanks in advance, Rob