Managing Distributed Transactions With ADO.NET 2.0 Using TransactionScope Gives Error Message

 Hi,
 I am working  on vs2005 with sql server 2000. I  have used TransactionScope class.
 Example Reference:
 http://www.c-sharpcorner.com/UploadFile/mosessaur/TransactionScope04142006103850AM/TransactionScope.aspx 
 
The code is given below.

 using System.Transactions;

  protected void Page_Load(object sender, EventArgs e)
    {
  System.Transactions.TransactionOptions transOption = new System.Transactions.TransactionOptions();
         transOption.IsolationLevel = System.Transactions.IsolationLevel.ReadCommitted;
         transOption.Timeout = new TimeSpan(0, 2, 0);

         using (System.Transactions.TransactionScope tranScope = new System.Transactions.TransactionScope(TransactionScopeOption.Required,transOption))
         {
            using (SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["nwConnString"].ConnectionString))
            {
                int i;
                con.Open();
                SqlCommand cmd = new SqlCommand("update products set unitsinstock=100 where productid=1", con);
                i = cmd.ExecuteNonQuery();
                if (i > 0)
                {
                    using (SqlConnection conInner = new SqlConnection(ConfigurationManager.ConnectionStrings["pubsConnString"].ConnectionString))
                    {
                        conInner.Open();
                        SqlCommand cmdInner = new SqlCommand("update Salary set sal=5000 where eno=1", conInner);
                        i = cmdInner.ExecuteNonQuery();
                        if (i > 0)
                        {
                            tranScope.Complete(); // this statement commits the executed query.
                        }
                    }
                }
            }
            //  Dispose TransactionScope object, to commit or rollback transaction.
        }
 }
 
It gives error like


 "The partner transaction manager has disabled its support for remote/network transactions. (Exception from HRESULT: 0x8004D025)" The database I have used is northwind database and pubs database which is by default in sql server 2000.
 
So, Kindly let me know how to proceed further. 
 
Thanks in advance,
Arun.