How can i make my Help file(CHM) to be installed in the Folder where the user install my application

Question

I create a CHM file where user can have that when he click on F1. But what i need is how can i make that to be installed in the folder where the user install my application in such a way that when he click F1 i have to read that from the folder he installed and show it. And also how can i call in my application with out calling some thing as c:\sample.chm or some thing i need to call it from the directory where it was