You can attach labels to the cables e.g. Scope Ch.1, AWG 1 to make cable identification easier.
Figure: Analog Discovery 2 pinout Diagram
 store.digilentinc.com, Analog Discovery 100MS/s USB Oscilloscope & Logic Analyzer, Pinout diagram (pdf file).
Go to the Main Menu > Tools > Preferences > Flows > Integrated Tools > HDL Sythesis
xst.exe is located in \Xilinx\14.7\ISE_DS\ISE\bin\nt
Figure: Active-HDL Student Edition, Preferences Window
xst – Xilinx Synthesis Technology.
As of October 2013 Xilinx has discontinued the development of ISE Design Suite. Instead you can download Vivado Design Suite.
The last version of ISE Design Suite was 14.7 (Oct.23, 2013) and it can be run on Windows 7 Ultimate (32-bit).
In February 2018 ISE Design Suite 14.7 for Windows 10 was released.