Specifies the text that appears in the caption bar beside the title of the Log On to Windows,Windows Security,Computer Locked, and Unlock Computer dialog boxes.
Windows 2000 does not add this entry to the registry. You can add it by editing the registry or by using a program that edits the registry.
The system adds only one space between the dialog box title and your message. To further separate the title from your message, begin your message with leading spaces.