you need a _ at the end of any run-on lines
Vb expects all statement to be a single line or have a _ at the end to let it know this code takes should also use the line below it.
Dim httpRequest As System.Net.HttpWebRequest = _
CType(System.Net.WebRequest.Create("http://protectwebform.com/verify/1545_mfkj0t9db3h5_" _
+ Request.UserHostAddress + "/" + Request.Form("protectwebformcode") _
+ "/"), System.Net.HttpWebRequest)