In my application I use InternetSetCookie() to add a cookie to the users machine so that when they are then directed to a web form on my web site certain items will already be filled in. Most importantly is a Serial Number which many users will mis-type if left to fill in the web form on their own.

The problem is that InternetSetCookie() adds cookies that only IE will see and not FireFox. Does anyone know of a programmatic way of adding a FireFox cookie to a users machine similiar to InternetSetCookie()?

Ed