Abstract: An electronic mail facility for dynamically adding a direct electronic mail capability to applications programs in a computer system having an integrated operating environment and connected to a plurality of electronic mail systems and including mail modules providing a drivers and interfaces to the mail systems, an administrative module, a user interface and a data interface. The administrative module includes a mail system manger including a mail system detector for detecting each of the mail systems and a mail system table for selecting and enabling a current one of the electronic mail modules and an application program manager for detecting the invocation of an application program to be supported by the electronic mail facility. The user interface includes user interface modifiers, each including a user interface representation of an electronic mail operation and an electronic mail procedure, including resources, scripts and macros, and drag and drop icons.