In tip 8453, I explained how to hide a user on the Windows XP Welcome screen.

If you want to force a Windows XP account to be displayed on the Welcome screen, run:

Welcome User_Name

Where User_Name is the NetBIOS account name, like Jerry. Welcome.bat contains:

                              @echo off                              if \{%1\}==\{\} @echo Syntax: Welcome User_Name&goto :EOF                              setlocal                              set user=%1                              @echo Reg ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList" /V %User% /T REG_DWORD /F /D 1                              Reg ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\SpecialAccounts\UserList" /V %User% /T REG_DWORD /F /D 1                              endlocal