Pegasus Mail v3.12a to v3.12b updater file, 16-bit version. Pegasus Mail System, (c) 1990-99, David Harris. This file will update an existing installation of the 16-bit version of Pegasus Mail v3.12a to v3.12b. This is not a full installer - it cannot be used on its own, nor can it be used to update from any version of Pegasus Mail earlier than v3.12a. To install this update: 1: Exit from Pegasus Mail if it is running. 2: Copy the files in this archive into the directory where your current copy of Pegasus Mail is installed.