Light Installer script can be compiled with
Inno Setup 5.57 or newer.
I recommend using
Inno Setup 6 repack (Updated to v6.05).
To compress the game files use the "
UltraArc/DiskSpan" compressor in the
attachment to this post.
Others tools can use the same tools available on the
CIU thread.
https://www.fileforums.com/showthread.php?t=102510