Eclipse Rich Client Platform and IBM Lotus Expeditor V6.1 are platforms for building client-side applications. This article examines <A HREF="http://www-128.ibm.com/developerworks/lotus/library/expeditor-eclipse/index.html?ca=drs-">Eclipse RCP and Lotus Expeditor,</A> considers why and when to develop applications for Lotus Expeditor with RCP, and shows how to migrate existing RCP applications to Lotus Expeditor.