The Free version bundles Relevant Knowledge PUP which hijacks browser activity. DO NOT INSTALL!!
Can be removed with most Anti-Malware packages (I used Malwarebytes).
WARNING!!! WARNING!!!
Got ."ChromeSetSearchInBrowser.exe" Browser redirect rootkit from 'Free Proxy'. Totally destroyed Firefox. Uninstalled Firefox, will reinstall FireFox. Still am not sure if I have totally eliminated it. DON'T EVEN THINK ABOUT USING FREE PROXY EVEN THOUGH IT WORKS! YOU'LL NEVER BROWSE THE INTERNET RIGHT AGAIN ,UNTIL YOU DISINFECT IT YOUR COMPUTER WHICH IS NOT THAT SIMPLE!!!!!!
update 1. Firefox fine after re-installing
update 2. Rolled back registry (for naught!) Had to uninstall Chris pc free anonymous proxy again!! Thirty or forty registration entries to manually find and delete after using standard windows uninstaller. BROWSER WILL NOT WORK CORRECTLY UNTIL AUTOCOMPLETEPRO AND CHRISPCFREE ENTRIES REMOVED FROM REGISTRY WHICH STANDARD UNINSTALL WILL NOT DELETE
Help for removing browser rootkit-Bleeping Computer (my first line help)http://www.bleepingcomputer.com/forums/topic386859.html/page__p__2188656
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