Hosting SQL Server 2005 As A Runtime Host

I am trying to use the new Common Language Runtime (CLR) hosting feature to write stored procedures in C#
i have added
Microsfot.sqlserevr.server name space
and ia m trying to use sqlContext Object as below

using (SqlConnection connection = new SqlConnection(dbConn))
        {
            connection.Open();
            SqlCommand sqlcmd = new SqlCommand("select @@ version", connection);
            SqlContext.Pipe.ExecuteAndSend(sqlcmd);
        }


i get the below error when i execute (SqlContext.Pipe.ExecuteAndSend(sqlcmd);)

System.InvalidOperationException was unhandled by user code
  Message="The requested operation requires a SqlClr context, which is only available when running in the Sql Server process."
  Source="System.Data"

i checked if (SqlContext.IsAvailable) and it returns false as well.

Please le me know how to make it work.

Thanks

THNQDigital