Thank you for your interest in System Optimizer X.
System Optimizer X is legacy software that has been replaced with the much improved Socks application. Socks encompasses all of System Optimizer X's features and many more. Download Socks here or see its product page for more information.
If you're a registered user of System Optimizer X you can upgrade to Socks for a discounted price.
Important: Please note that System Optimizer X is intended for use with Mac OS 10.2 through 10.4.11. While System Optimizer X has been known to function on versions of Mac OS X later than 10.4.11, it is not officially supported in those versions. Those wishing to use System Optimizer X on newer versions of Mac OS X should use Socks instead.