This section includes various problems you might encounter on Windows systems. The explanation of the problem is followed by possible solutions.
Symptom: Cannot install the web agent after a previous installation has been removed.
You might have an existing installation of the web agent.
You might have a previously-installed web agent and did not use the web agent’s uninstallation program to uninstall the agent.
The installation program’s productregistry file might be corrupted.
Possible Solution: To resolve the issue, manually remove the web agent as explained in the following task description.
Stop all of the web sites.
Stop the proxy server instance.
Remove Agent for Sun Java System Web Proxy Server 4.0.
Remove the PolicyAgent-base directory from the server.
where PolicyAgent-base represents the directory in which the web agent was originally installed.
Remove the following entries from the PATH variable:
Restart the server.
Symptom: Unable to uninstall the agent from a Windows system using the Add/Remove Program option in the Control Panel.
Possible Causes: Java’s class path might not be set correctly on the machine.
Possible Solution: Perform the following task.
Open Command Prompt Window.
Change directories to PolicyAgent-base
Execute the following command:
Symptom: Policies are not enforced when using Agent for Sun Java System Web Proxy Server 4.0.
Possible Cause: URL mapping is inaccurate. More specifically, the resource names for setting policies are not the URLs qualified as “URL prefix” (from the client) in the Sun Java System Web Proxy Server 4.0 administration console.
Possible Solution: Ensure that each resource name used for setting policies matches a URL prefix as listed in the Sun Java System Web Proxy Server 4.0 administration console.
Symptom:When a user attempts to access a resource using Internet Explorer as the browser, access is denied.
Possible Cause: Internet Explorer overrides the port number of the web agent with the Access Manager port number. In such cases, the agent log file lists the URL that is being evaluated. The port number for that URL is incorrect.
Possible Solution: You can ensure this problem does not occur by setting the following property in the web agent AMAgent.properties configuration file to true as shown:
com.sun.am.policy.agents.config.override_port = true
Symptom: After the agent is installed, the web server fails to start.
Possible Cause: Libraries that agents depend on for Windows systems are missing. Ensuring that the libraries msvcp70.dll and msvcr70.dll are available is a pre-installation step in this guide. If the libraries were not properly added, the web server might not start.
Possible Solution: Obtain the appropriate libraries as described in Preparing to Install Agent for Sun Java System Web Proxy Server 4.0 on Windows Systems.