Java ES 2005Q4 incluye los siguientes componentes. Estos componentes se pueden seleccionar de forma individual para instalarlos. (En esta guía se utilizan nombres abreviados acompañados del nombre completo y la versión.)
Communication Services Delegated Administrator 6.3 (Delegated Administrator)
Service Registry 3.0
Sun Cluster 3.1 8/05 (software de Sun Cluster)
Sun Cluster Agents for Sun Java System (Sun Cluster Agents)
Sun Java System Access Manager 7.0 (Access Manager)
Sun Java System Administration Server 5.2P4 (Administration Server)
Sun Java System Application Server 8.1 Enterprise Edition + revisiones (Application Server)
Sun Java System Calendar Server 6.2 + revisiones (Calendar Server)
Sun Java System Communications Express 6.2 + revisiones (Communications Express)
Sun Java System Directory Preparation Tool 6.3P2 (Directory Preparation Tool)
Sun Java System Directory Server 5.2P4 (Directory Server)
Sun Java System Directory Proxy Server 5.2P4 (Directory Proxy Server)
Sun Java System Instant Messaging 7.0.1 (Instant Messaging)
Sun Java System Message Queue 3.6 Enterprise Edition SP3 (Message Queue)
Sun Java System Messaging Server 6.2 + revisiones (Messaging Server)
Sun Java System Portal Server 6.3.1P3 (Portal Server)
Sun Java System Portal Server Secure Remote Access 6.3.1P3 (Portal Server Secure Remote Access)
Sun Java System Web Server 6.1 SP5 (Web Server )
Sun Java System Web Proxy Server 4.0 (Web Proxy Server)
High Availability Session Store (HADB) 4.4.2