Automatic logon : [AutoAdminLogon]

One more time we have to choose between security and functionality.
Using this key we have the possibility to make automatic logon in our XP Workstation when the workstation is started. This solution some times is mandatory when some process in the machine needs to run into the logon environment of some user, it means, an application that can´t be installed as a service.
But this is a security breach as the information about logon name and password is stored in clear text in the registry.
The registry path to modify is this one :
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\Winlogon
Below this path there are three entries (String Values) we have to set :
DefaultUserName : “logon name of the user to make logon”
DefaultPassword : “password for such user”
AutoAdminLogon : “put this value to 1″