From IP Changer King:
IP Changer King is a ip changing software, also called a network switching software and enable you save multiple network profiles and switch your IP address, Subnet mask, Default gateway, Preferred DNS server, Alternate DNS server, Proxy server by one click, whether you at home, at school, in the office or in a wifi hotspot. (15 day free trial with full feature)(Windows XP, 2003, Vista, 7, 2008)
What's new in this version:
Version 2011.03.03 may include unspecified updates, enhancements, or bug fixes.