Create a Single Sign On process for all of the IBM Lotus Product Clients. It could use the operating system credentials or other back end stores, to authenticate a user to the server.
You could even create a browser plug-in that could ...
In the Lotus Notes Client I can open any URL by typing it into the addressbar. Why there is no SSO between my Lotus Notes Session and the URL on a Domino Server in the same Domino Directory?
SSO between Lotus Notes and Windows (Notes Shared Login) ID vault are "must have" for all companies running Domino in 2011. But if you need to combine Roaming with Shared login and ID Vault, your users will have to type a password that was originally associated with their Notes ID ...
I suggest to allow the configuration of SSO within the DIIOP internet site document. Currently the configuration is not intuitive.
See this TN for details: