Fix loading Xilinx licenses in Windows 8

The Xilinx ISE WebPack tools are apparently not officially supported in Windows 8 (whether the problems affect both the 32-bit versions and 64-bit versions or not, I do not know), and any attempts at opening file dialogues in the 'Manage Xilinx Licenses' or 'Project Navigator' results in the program closing. There is a workaround for these problems, available below and in videoformat here.

For everyone trying to use Xilinx ISE 14.5 in Windows 8 x64. Rename libPortability.dll to libPortability.dll.orig, and copy libPortabilityNOSH.dll to libPortability.dll.

Do this in:
C:\Xilinx\14.5\ISE_DS\ISE\lib\nt64
C:\Xilinx\14.5\ISE_DS\common\lib\nt64 (copy dll from first location)

This turns off SmartHeap.

This will fix ISE and iMPACT crashes on file dialogs.

I found the solution here and tested it against the Xilinx ISE 14.6 in Windows 8 64-bit with successful results.