ReportEvent not logging Username
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  1. #1
    Join Date
    Nov 2010
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    1

    Question ReportEvent not logging Username

    Hi,

    I am writing a proof of concept Win32 console application to run on a Windows XP machine that will log messages to the event log of a Windows 2003 Server.

    I have tried achieving this using the eventcreate.exe but I can't get this command to log the username of the user who made the call. It always seems to log "N/A" in the user field in Event Viewer when I run eventcreate.exe on the XP client but if I run the command on the server it works correctly. This is why I am trying to write a Win32 app to try to work round this.

    I am calling LookupAccountName() to obtain the user's SID from a given username (the currently logged in user) and I pass this to the ReportEvent function. This all works and my events appear in the logs on the server however the username is still "N/A"! The call to LookupAccountName returns a SID (I used the ConvertSidToStringSid function to check it contains data).

    Is there something I am missing? Is this even possible (I guess it must be because Clearcase manages to add a username to its entries in the Application log). Is there anything I can use to debug this problem? I guess the SID must be incorrect but I don't know how to determine what the value should be. Has anybody got the eventcreate.exe to populate usernames?

    Oh and as aside I copied the eventcreate.exe and dll from 2003 to XP and this behaved differently to the standard XP version. It wrote the actual SID string to the username column. I guess this proves that the XP version is different to the 2003 version.

    Any help would be much appreciated

    kezz2k2

  2. #2
    Join Date
    Nov 2000
    Location
    Voronezh, Russia
    Posts
    5,978

    Re: ReportEvent not logging Username

    Is there something I am missing?
    Definitely it is. You are missing that the SID identifies the user in your XP, but server knows nothing about it as it has it's own user identification. SID is a system-wide id, but not world-wide.
    Best regards,
    Igor

  3. #3
    Join Date
    Nov 2010
    Posts
    1

    Re: ReportEvent not logging Username

    Thanks for your reply. That makes sense.

    Is there another way for "user1" logged into a domain on an XP client to log messages to the event log on a Windows 2003 server (the dc) whilst populating the User column (so that the event can be attributed to the user that caused it to be logged?

    kezz2k2

  4. #4
    Join Date
    Nov 2000
    Location
    Voronezh, Russia
    Posts
    5,978

    Re: ReportEvent not logging Username

    In domain environment any user is identified by the pair DOMAIN_NAME\USER_NAME. In case of local user (or user belonging to workgroup) the machine name is used as domain name.
    Best regards,
    Igor

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