Dim web As New System.Net.WebClient()
 
web.Headers.Add("Content-Type", "application/x-www-form-urlencoded")
 
Dim d As Byte() = System.Text.Encoding.ASCII.GetBytes("SEARCHSTRING=test")
Dim res As Byte() = web.UploadData("http://abstractvb.com/search.asp", "POST", _
  d)
 
Console.Write(System.Text.Encoding.ASCII.GetString(res))

If it was hard to code, it should be hard to read too.