Problems with characters

[LPalma]

Hi!

I'm using this code:

 Dim oReq As System.Net.HttpWebRequest 
Dim oResp As System.Net.HttpWebResponse
oReq = System.Net.HttpWebRequest.Create(strPage)
oResp = oReq.GetResponse
Dim sr As New IO.StreamReader(oResp.GetResponseStream)
Return sr.ReadToEnd()

But, when I download a web page with characters like "ç", "ã", "õ" etc... It puts "?" for each character.

How can I solve this?

Thanks in Advance!