Winrar Command Line SFX Creation

a archivename -s -sfx -z "archive parameter file.txt"

Which means a for add to archive archivename -s silently -sfx create an sfx file -z using the parameters in the text file archive parameter file.txt.

It is the -z portion that allows us to make the sfx a silent one, that is put into a temporary folder, and over writes the files, along with which program to execute, and what icon to use for the sfx.

Something to look into later: Solid Archive, since the sfx is rarely ever updated