File Extensions and ProgID

[dgpope]

I am trying to create a file extension in my setup. It's asking me to fill in the ProgID of my application. Where do I obtain this value?

THanks,

David P.

[destek]

My gosh - since 2002 no one has been able to answer this?
Well - I found this part of installshield completely cryptic myself. The help is none at all (thinking here they do this on purpose to sell training) with statements like: "Fill in the progID of your program" Duh! We know THAT!
So the question is: What is the progID, where do you get it from?
I found that simply putting something like fubar.jpg where fubar is the name of my program and jpg is the extension I'm going to use appears to work - but I have no idea of this is what you are supposed to do. I suspect it would work as well if you left it blank....
Just guessing cause there's no help in the help files...