Answer: Yes, for the Java ES installer on the Microsoft Windows platform. This Quick Install creates a Java ES deployment on a single Windows host using default configuration values. The basic components (excluding Monitoring Console and Sun Cluster software) are automatically started and ready to go. For instructions on using Quick Install, refer to the Sun Java Enterprise System 5 Installation Guide for Microsoft Windows.
On UNIX platforms (Solaris OS, Linux, HP-UX), two documents exist that provide instructions for creating a single-host evaluation deployment using the installer:
Sun Java Enterprise System 2005Q1 Deployment Example Series: Evaluation Scenario
Deployment Example: Sun Java System Communications Services 2005Q4 on a Single Host
Additional information on evaluating Java ES is contained on the Evaluate page of the Java ES hub.
Doing an evaluation installation on a single host is a good way to learn how the installer works.