Why is this free?
Gimpshop.com is distributing custom installers which are different from the
originally available distribution. These new installers comply with the
original software manufacturer’s policies and terms & conditions. InstallIQ™
is an install manager, which manages the installation of your chosen
software. In addition to managing your download and installation, InstallIQ™
will offer free popular software that you may be interested in. You are
not required to install any additional software to complete your installation of
your selected software. You can always completely remove the programs at any
time in Windows’ Add/Remove Programs.