For 8 days
Im looking desperately place where u can edit the File types & associate them with ur applications using custom parameters.
even googling doesn't yield me much result other than I got this program "File Type Doctor" which has proved useless. I dug some registry & found that vista has a little different way of storing filetype assoc.

Anyone who has done it properly. I know this method "In Control Panel Classic View, open Default Programs and then click Associate a file type or protocol with a program." but it doesn't let u manually set anything in text.