Event ID 528 : successful logon - lists the following... user name domain logon id logon type logon process authenication package workstation name logon types... Type 0 : N/A Type 1 : N/A Type 2 : Console logon - interactive from the computer console Type 3 : Network logon - network mapping (net use/net view) Type 4 : Batch logon - scheduler Type 5 : Service logon - service uses an account Type 6 : Proxy Logon? Type 7 : Unlock Workstation unsuccessful logon events... Event ID 529 : Unknown user name or bad password Event ID 530 : Logon time restriction violation Event ID 531 : Account disabled Event ID 532 : Account expired Event ID 533 : Workstation restriction - not allowed to logon at this computer Event ID 534 : Inadequate rights - as in user account attempting console login to server Event ID 535 : Password expired Event ID 536 : NetLogon service down Event ID 537 : unexpected error Event ID 539 : Logon Failure: Account locked out Event ID 627 : NT AUTHORITY\ANONYMOUS is trying to change a password Event ID 644 : User account Locked out Event ID 538 is not an unsuccessful event but rather a successful logoff. Event ID 540 is not an unsuccessful event but rather a successful network logon as in mapping a network drive. Win2K only events... Event ID 541 : IPSec security association established Event ID 542 : IPSec security association ended (mode data protection) Event ID 543 : IPSec security association ended (key exchange) Event ID 544 : IPSec security association establishment failed because peer could not authenicate Event ID 545 : IPSec peer authenication failed Event ID 546 : IPSec security association establishment failed because peer sent invalid proposal Event ID 547 : IPSec secuirty association negotiation failed Event ID 672 : Authenication Ticket Granted Event ID 673 : Service Ticket Granted Event ID 674 : Ticket Granted Renewed Event ID 675 : Pre-authenication failed Event ID 676 : Authenication Ticket Request Failed Event ID 677 : Service Ticket Request failed Event ID 678 : Account mapped for logon Event ID 679 : Account could not be mapped for logon Event ID 680 : Account used for logon Event ID 681 : Logon failed. There error code was: Event ID 682 : Session reconnected to winstation Event ID 683 : Session disconnected from winstation