How To: Manage Your Passwords With Credential Manager in Windows 7 or in Vista

Credential Manager is a new SSO solution that Microsoft offers in Windows Server 2003 , Windows XP and also includes in new generation operating systems Windows Vista and in Windows 7 .Single sign-on (SSO) is an approach that attempts to reduce the time users spend performing logon tasks and the number of passwords users must remember.Credential Manager is a central store for all of your usernames, passwords, and X.509 certificates. It's based on a secure client-side credential- caching mechanism.
To use Credential Manager in Windows Vista:
Open Control Panel.
Open User Accounts.
Click Manage My Network Passwords on the Related Tasks panel (on the left side of the window). You'll get a dialog box listing all of your stored usernames and passwords.
Add another username and password, or remove the existing ones or change their properties.
To use Credential Manager in Windows 7:

Microsoft's new generation operating system Windows 7(code named as Vienna) will include a system for managing the online IDs, logons, and passwords that you must manage for all of the Web sites you visit. Dubbed Windows Credentials , this feature utilizes a KeyRing for storing online credentials and a Credential Manager user interface. These settings can be backed up to and restored from a secure online vault. To access Credential Manager in Windows 7 go to Control Panel -> User Accounts -> Credential Manager Download Windows 7 if you doesn't have it