James, Thank you for your answer. This could do the trick. I'll try it out. I already was thinking about changing the HttpWebRequest in another method, because in my opinion a WebRequest is the equivalent of a GET. What I need is a POST, so I'm thinking of using an HttpWebResponse...

Nobody? :-S This is what I found out: - The "page" variable gets a value, but when viewing this value using the built-in HTML viewer, I get the login-page. - At the bottom of this page, a message is displayed saying "Your browser is not supported". Could this cause the problem? If so, is there an alternative to make this work? Thanks in advance.

Isn't there another way around? Like, an auto closing MessageBox, displaying for example the text "Please wait. Your information is being printed", and when closing the MessageBox, returning to the startup page (which is also defined as TopMost)?

You're welcome :)