The libraries need not reside under the Xilinx installation since the locations of the libraries can be appropriately mapped with a library definitions file named cds.lib. The cds.lib file defines which libraries are accessible and where they are located. The file contains statements that map logical library names to their physical directory paths.
Use WINZIP or some other unzip utility to extract to the appropriate location.
When using cds.lib with Xilinx, include a reference to the following libraries.