OK so i will try again to explain

the full url or request is
w w w dot yonewmail dot com?hellocarl
but the ?hellocarl part is diffrent each time i need to be able to set this field with a text box entry

webBrowser1.Navigate(w w w dot yonewmail dot com,+ textbox1.text"_self", null, "Mozilla/5.0 (");

can someone help me please