Hy staff,just only little advices if you can....

I've successfully implemented a Digest Authentication Plugin:

 string AUTH_REALM = "registered_users@mydomain.com"
 string AUTH_QOP = "auth";
 strNonce = GenerateNonce() //It's evaluated Datetime.Now + 3
 Challenge=Enc.GetBytes("realm=\"" + AUH_REALM + "\",qop=\"" +
AUTH_QOP + "\",nonce=\"" + strNonce + "\", charset=utf-8");

I don't use MD5-sees but classic MD5 because if I specify that
algorithm in the challenge I receive error by WMP9 of per-message not
supported  ??????????

To capture values in the Response I use a dictionary:

 ListDictionary dict = new ListDictionary();
 string[] parts = strResponse.Split(new char[] {','});

A strange thing is that (string)dict["realm"] = "",that is WMP9
doesn't take me
back the value of the realm the Server send in the Challenge!!!!!!!

Anyway I can successfully reconstruct strDigestHash being careful of
using Algoritm MD5 and not MD5-sees.

If Anyone can tell me how to adjust realm and what about per-message
error....

Bye bye to All!