If you use the Java ES installer to install Portal Server on Microsoft Windows, the resulting installuation does not function correctly.
Solution Do not use the Java ES installer to install Portal Server on Windows. Instead, download Portal Server 7.1 Update 1 from the Sun Download Center at http://www.sun.com/download/products.xml?id=465e130d. Follow the instructions in the ReadMe file that accompanies the download to produce a functioning installation of Portal Server.