SetUp & Deployment

Question

I`m doing a SetUp & Deployment project. I`m using Custom Actions Editor to create a file and place it in the Installation Directory, this code is in a class file. When I add the output of this I want the file to be created and instead the .exe file is being placed in the Installation directory. What do I have to do to to send the output of the .exe file and not the .exe itself into the installation directory. What am I missing?