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Tools: VLastLog - Logon Credentials Tweaker


Table of Contents


Introduction to VLastLog

The purpose of this tool is to allow system administrators to log onto a Windows workstation without disturbing the last logged on user text. In this way it will look like you never logged onto the computer, which is often confusing because many people do not remember their user names.

What the program actually does is alter registry values stored in "HKLM\SOFTWARE\Microsoft\Windows NT\Winlogon" for XP or "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI" for Vista+. The values are the string (REG_SZ) values of "DefaultUserName" / "DefaultDomainName" for XP and "LastLoggedOnSAMUser" for Vista+. These values can be set, swapped or overwritten by the other values using this program, making it easier and able to be automated to set these values.

Also, please let me know if you have any questions, comments or suggestions for this program.

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Instructions for General Usage

VLastLogWhen the program is first started it will scan the registry for the last logged on user name, the last domain logged onto and a complete list of users registered on the computer. These values will then be placed in their respective fields in the program.

You can then select a user from the list and use the "Save" button to commit the changes before you quit.

Only users that have logged onto the computer previously will be shown in the list. You can type in any user name if you would though.

It is important to note that when using the Welcome Screen it may be required that the computer is joined to a domain for the program to be useful since the default action in many flavors of Windows is to show all possible accounts instead of defaulting to an account.

In many organizations that use group policy to erase the last logged on user this program will not be useful.

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Automation (Command-line Parameters / Arguments )

Most of my programs I include command-line parameters but I have not with this program. If you would like me to add command-line automation for this program then let me know and I should be able to do it for you.

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Version History

2014/03/16: v2.0.1 released.

I completely rewrote the program so it supports Windows Vista, 7 and 8, and I also renamed it from LCT to VLastLog.

2006/07/20: v1.0 released.

This is the first release of this program. The program is freeware. I am sure the program has some minor bugs so let me know if you find them.

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Program Name: Logon Credentials Tweaker
Download: or
Current Version: 2.0.1 (final/release)
Release Date: 2014/03/16
Notes: The program was written such that it should work on Windows XP and above, for both 32bit and 64bit variants. Please let me know if you find this program useful, and also let me know if you have any features you would like to see in a newer version.

You can also browse all previous versions by clicking here.

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"I can write better than anybody who can write faster, and I can write faster than anybody who can write better." --A. J. Liebling (1904-1963)

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