ECCO Professional was introduced by Arabesque Software in 1993, as a Personal Information Manager (PIM) with a database backend. This version supports calendar and contact data, as well as to-do lists, and allows integration with other software via import and export capability, Dynamic Data Exchange (DDE), Object Linking and Embedding (OLE). A feature called "Shooter" puts a cut and paste tool at the top of the screen facilitating copy of data to and from ECCO. The user interface is based on a "universal outliner" and folders, which allow the user to build a variety of views organizing related information of mixed types. Data is stored as discrete objects, and can be dragged as dynamic links to multiple folders creating cross references. Ecco version 1.x supports shared folders and outlines for network access to data, but does not support windows workgroups. Ram based, the program was considered fast and relatively easy on laptop batteries, but a heavy consumer of system resources.