Thanks for the reply.

I need to create my own set up, do not want to use the original set up.

Here I will explain in details what I mean exactly:
I have modified save function(where File Dialogue box appears) in PDFCreator. Now, I want PDFCreator to use the Save function written by me. For the same I have to create my set up, right??

I am trying to do the same, but don't know where to start because the save function is written for a button click of a from, so how PDFCreator will come to know that whenever print command is raised then refer my function??

Thanks