To manage a Xilinx ISE 14.5 license for Windows 8 and 8.1, the document outlines 4 steps: 1) Make a copy of the libportabilityNOSH.dll file in the same directory as the other .dll files. Rename the files to have 3 files. 2) Rename the copy of libportabilityNOSH.dll to libportability.dll. 3) Copy libportabilityNOSH.dll to another location. 4) Start Xilinx ISE 14.5, go to the license manager, and copy the cracked license file to manage the license.