Converting Exe To Iso

Is there a way to turn an executable program into an iso image so It can be burned to a cd and possibly bootable? Do I need a program or can I just change the extension? :unsure:

Thanks

This is what i do...i firstly go to the file in my shared folder and i make a copy of it somewhere else such as my documents (so i have 2 incase i mess up). Then i change the extension to .iso and then i use winiso to check it by extracting it. Then after i have checked it, i burn it.

Thanks ;)

use program winiso or isobuster to make an iso. both readily available at your local kazaalite :D