The EncryptedWriter API does not work in ISE 11.1 software due to the following issues:
1) LibCoreu_Utilities.lib, needed to link, is missing.
2) Coreu_EncryptedWriters.h contains a dependency on Coreu_RuntimePrefs.h which must be removed.
3) The api_test_harness/run_test.csh script does not work out of the box. Customers must build their own compile and link commands by referring to this script.