How do I run the Windows Weka installer in "silent" mode?

To run the Windows installer for Weka without in "silent" mode (i.e. without any graphical prompts/dialogs):
  • Open a command prompt window
  • Navigate to the directory where the installer executable resides
  • Type .\weka-x-y-z.exe /S

Replace x, y and z with the correct version numbers for your installer of course. Note that the /S is a capital S.