System and method for enabling single sign-on for networked applications

A system for performing single sign-on user authentication, the system comprising:

• a first computer system running client-side software associated with a first networked application;
• a second computer system connected to the first computer system via a network, wherein server-side software associated with the first networked application runs on the second computer system;
• a third computer system connected to the first computer system via a network, wherein server-side software associated with a second networked application runs on the third computer system;
• wherein the client-side software associated with the first networked application is operable to:
• receive authentication information from a user;
• communicate with the server-side software associated with the first networked application in order to authenticate the user to use the first networked application, in response to said receiving the authentication information from the user;
• launch the second networked application from within the first networked application, wherein said launching comprises providing authentication information associated with the user to the server-side software associated with the second networked application;
• wherein the server-side software associated with the second networked application is operable to authenticate the user to use the second networked application, in response to receiving said authentication information from the client-side software associated with the first networked application.