just search for open source, or free win installer or something… i used one some time ago… it worked very well… allthough it says it is a trial. But i know there is an open source, completely free one out there, just can´t remember the name of it.
It is the installer used by Inkscape, so if it’s good enough for them it’s good enough for me. With the ability to uninstall, make Start Menu shortcuts, and desktop shortcuts - even customize the graphics.