If you are running XP Pro, you can audit logins. From an admin account, go
to start - run - gpedit.msc. This brings up the group policy window.
Navigate to Computer Configuration\Windows Settings\Security Settings\Local
Policies\Audit Policy and you can turn on tracking for account logon events.
Then, you will have an entry in the event log for each login attempt.
I honestly don't know if you can do this in XP Home as well.
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Chris Jackson
Software Engineer
Microsoft MVP - Windows Client
Windows XP Associate Expert