Question : Your user accounts are unexpectedly locked and event ID 12294 is logged in Windows Server 2003?

Your user accounts are unexpectedly locked and event ID 12294 is logged in Windows Server 2003?

Answer : Your user accounts are unexpectedly locked and event ID 12294 is logged in Windows Server 2003?

Win32/Conficker.A
http://www.ca.com/securityadvisor/virusinfo/virus.aspx?id=75911

This is also another nasty virus as of recent....

Also, see if this helps....

Account Lockout and Management Tools
http://www.microsoft.com/downloads/details.aspx?FamilyID=7AF2E69C-91F3-4E63-8629-B999ADDE0B9E&displaylang=en