what's a good windows installer?

I have a game I did and want to put it up on amazon.com app store. They rejected it saying I must have an installer. I just exported it from unity and zipped it up. In the past amazon would add their own installer, but now they don’t. So anyone know of a cheap installer that can be used for a unity export for windows?

Google leads to Inno and wikipedia

Bunny83, why did you waste everyone’s time readin that dumb a answer??? I am asking a question for developers who use unity for and answer and I get another trash answer. You just give unity a bad name. I just want to know what unity devlopers use not get directed to another web site full of viruses.