GkSetup Self Extractor - Version 1.01 The GkSetup Self Extractor allows you to distribute your software the simplest possible way. GkSFX allows you to create automatically extracting modules for setups or modules that only extract some files in a user-specified directory. Just try it, it's fast, easy to use and free for non-commercial users. Commercial users have to send one copy of their software to the author of this package.