Place the NCSO.jar file in the following directory:
PortalServer-base/SUNWportal/web-src/WEB-INF/lib
Redeploy the web application with the following command:
PortalServer-base/ SUNWportal/bin/deploy redeploy
Where PortalServer-base represents the directory in which the Sun Java System Portal Server was originally installed.
Restart the web container.