A free software for easily creating setups

http://www.jrsoftware.org/isinfo.php

Instead of packaging your app in one exe file, you can create a setup which contains all necessary files. A free software for easily creating setups is Inno Setup:http://www.jrsoftware.org/isinfo.php

Inno Setup is a free installer
for Windows programs. First introduced in 1997, Inno Setup today rivals and even surpasses many commercial installers in feature set and stability.

An example for a setup configuration can be found here:https://github.com/SSilence/sum/blob/master/setup.iss