ID-SEC SOLUTIONS LTD provides a single sign-on solution called 4SO that allows users to access their Lotus Notes accounts without remembering a separate password. 4SO authenticates users based on their Active Directory credentials and generates a long, randomized password to access their Notes ID file. This reduces help desk calls related to forgotten Notes passwords and improves security by preventing password sharing and reuse. 4SO provides advantages over competing solutions such as supporting all versions of Lotus Notes, allowing offline access, and generating stronger randomized passwords compared to human-chosen passwords. Several organizations have implemented 4SO successfully with no support calls.