You cannot uninstall a plug-in if any object owned by the plug-in is being used by the provisioning system.
To uninstall a plug-in, you must be a member of the admin user group.
Ensure that all objects owned by the plug-in are not in use.
The following components must be uninstalled from the hosts on which they were installed.
WebSphere applications
WebSphere application servers
Deployment Managers
Clusters
Cluster Members
You cannot delete a plug-in if any object owned by the plug-in is being used by the provisioning system.
In the Application Deployment section of the browser interface, click Plans.
If necessary, navigate to the /com/sun/was/5.1 folder.
Select UninstallSystemServicesPlan and click Details.
The plan's Details page is displayed.
Click Run.
Verify that the com.sun.was#InstallTargetHS target host set is selected.
Click Run Plan (Includes Preflight).
The WebSphere system services are deleted.
In the Administrative section of the browser interface, click Plug-ins.
Select the plug-in that you want to uninstall and click Details.
The plug-in Details page displays.
At the bottom of the Details page, click Delete.
You are asked to verify that you want to delete the plug-in.
Click Continue to Delete.
After the plug-in is deleted, the Plug-in page is updated.