The logon dialog box that is displayed can be interpreted as aninvitation to breach system security. The "Welcome" caption on the dialogbox cannot be changed. However, you can enable a warning message dialog boxto be displayed.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
Windows NT and Later
To enable a warning message to be displayed, make the following changes to the registry:
Start Registry Editor.
From the HKEY_LOCAL_MACHINE subtree, go to the following subkey: