If you want to create a Logon Banner: A message box to appear below your logon on.

1.Open RegEdit
2.Go To
For Windows 9x and ME -
HKEY_LOCAL_MACHINE\SOFTWARE\ Microsoft\ Windows\ CurrentVersion\ Winlogon

For Windows 2000 XP 2003 Vista -
HKEY_LOCAL_MACHINE\SOFTWARE\ Microsoft\ Windows\ CurrentVersion\ Winlogon

3.Create a new String value"LegalNoticeCaption "
4. Enter the Title of the window. What is displayed in the Title Bar.
5. Create a new string value "LegalNoticeText"
6. Enter the text for your message box that will appear even before the Logon window.