You can uninstall a web agent on a Windows system using the graphical user interface (GUI).
To uninstall a web agent, you must run the uninstallation program.
In the Windows Start menu, choose Settings > Control Panel.
In the Control Panel, open Add/Remove Programs.
In the Add/Remove Programs window, choose Sun Java(tm) System Access Manager Policy Agent.
Click Next on Welcome panel.
Click Uninstall Now.
Click Exit after uninstallation is complete.
Restart the Sun Java System Web Proxy Server 4.0 instance from which you just uninstalled the agent.