Double click file initiates dll

Hey guys

I have written a dll which is a shell extension so when you right click on my file type it brings up a menu. What i was wonering is if anyone knew how to get the double click of the file to launch one of the right click menu options on the file.

At the moment i found the registry entrys to get it to load a dll on double click or open but i was wondering what the registry passes in to the dll and what function i need to add to the dll to get it to react to the open command.


Cheers for the help
Peter

If you look up some information on rundll32 you can use that. Basically it allows you to call a function in a DLL, but AFAIK there are some caveats to this.