http://blogs.technet.com/markrussinovich/archive/2005/10/19/the-bypass-traverse-checking-or-is-it-the-change-notify-privilege.aspxPrivileges are special security powers that you assign to accounts in Local Policies->User Rights Assignment node of the Local Security Policy editor, secpol.msc. When a user logs in, the Local Security Authority Subsystem process - Lsass.exe - createsen-USCommunityServer 2.1 SP1 (Build: 61025.2)