Welcome Logon Screen does not appear in XP

[Bisujaksha]

I have discovered something strange recently. Whenever I start my Windows XP, it starts up without displaying Welcome logon screen that it always used to before. However, I am not facing any problems due to this, the systems works normally once started....but what can be the reason for not diplaying Welcome logon screen ?
Any ideas....kindly help

[Devasis]

Check whether your computer is a part of a workgroup or is the feature of Fast User Switching enabled !!!

On a Windows XP-based computer that is part of a workgroup and has the Fast User Switching feature enabled, the computer may start without displaying the "Welcome" logon screen.

[Devasis]

The Guest account is not relevant when Windows determines if there is only one user without a password. If there is only one user registered on the computer, the "Welcome" logon screen is not displayed before the account is logged on. You can use the Fast User Switching feature to gain access to the Guest account.

Note that this behavior occurs only if the user account is part of a workgroup (not a domain) and any of the following conditions exist:

• No password is configured for the user account.
  
• No other users are registered on the computer.

To work around this behavior, either add a second user to the computer or create a password for the user account. This prevents the account from being logged on automatically.

After the administrator is automatically logged on, you can switch users to gain access to the Guest account by using the Fast User Switching feature.

[Solomon]

Some 3rd party applications, (such as PCAnywhere) may have replace the Windows XP logon routine with their own.
To Restore the Windows XP Welcome Screen - use the following script

'Fix Windows XP Logon
'For use when a 3rd party app, such as PCAnywhere, replaces the 
'Windows XP Logon
'fixxplogon.vbs
'© Doug Knox - 1/13/2002
'Downloaded from http://www.dougknox.com
On Error Resume Next

Set WshShell = WScript.CreateObject("WScript.Shell")
WshShell.RegDelete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\GinaDLL"

Message = "Your Windows Logon Screen is restored" & vbCR & vbCR
Message = Message & "You may need to log off/log on, or" & vbCR
Message = Message & "restart for the change to take effect."

X = MsgBox(Message, vbOKOnly, "Done")
Set WshShell = Nothing

This script is designed to correct this, and allow you to use the Windows XP Welcome Screen.

Usage: Download fix_xp_logon.vbs and save this file to your hard drive. Navigate to where you saved it and double click the file. A confirmation dialog will appear when finished. You may need to log off/back on or restart your computer for the change to take effect. This script can be viewed in Notepad or any text editor, as to the specific Registry key and value that are updated.