Marty List brings us CYT freeware, which allows you to change the default user name that is shown at the logon prompt. This is useful when you have logged onto a user's computer and don't want them to lock out your account by typing their password with your UserName.
The readme contains:
A default user logon utility for Windows. Allows you to change
the default user ID shown at the next logon.
Use Cyt.exe /? to view the optional command-line syntax.
Copyright ©1998-2000 Marty List
Requires MSVBVM50.DLL version 05.00.4319 or later. To obtain the
latest versions of the Microsoft Visual Basic run-time files, see
the Microsoft Support Knowledge Base article <a target="NewWindow" href="http://support.microsoft.com?kbid=180071">Q180071</a>:
<a target="NewWindow" href="http://support.microsoft.com?kbid=180071">http://support.microsoft.com?kbid=180071</a>.
Added code to reset the user name shown for each RAS profile on Win9x.
Fixed a bug with DontDisplayLastUser on Windows 2000.
Added support for Windows 2000 and Windows 9x.
Added option to modify profiles and support for command-line switches.