Hola, he estado buscando pero no encuentro nada. La cosa es que estoy intentando averiguar donde guarda el windows live messenger las contraseñas cuando le damos a "Recordar contraseña" para intentar mostrarla en .NET
¿alguien sabe como es?

Gracias.

A partir de MessengerService no aparece nada!

Bueno yo mismo me respondo, después de buscar bastante:

MSN Messenger version 7.x: The passwords are stored under HKEY_CURRENT_USER\Software\Microsoft\IdentityCRL\Creds\[Account Name]
Windows Live Messenger version 8.x/9.x: The passwords are stored in the Credentials file, with entry name begins with "WindowsLive:name=". They a set of Win API functions (Credential API's) to store its' security data (Credentials). These functions store user information, such as names and passwords for the accounts (Windows Live ID credentials). Windows Live ID Credential records are controlled by the operating system for each user and for each session. They are attached to the "target name" and "type". If you are familiar with SQL you can think of target name and type as the primary key. Table below lists most frequently used fields in Windows Live ID Credential records.