Part of the Corporate sms app is programmed in C and the rest in ASP.NET C#. It can do the following. 1. Read Short Messages from the SIM card connected on USB Port through GPRS (Safaricom or Zain) USB modem and populate into MYSQL 5.1 for future reference. 2. Create a Primary Data Unit for sending via the same Connectors and track as sent items. 3. Reroute a short message e.g One message can sent to the number (Safaricom or Zain or other) connected to Modem and the system reroute it to other numbers (Contact group) specified in phonebook. 4. Generate reports on all selected cretiria 5. The system allows to select dual sim card mode. Where you can select one to send and one to receive. 6. Short messages received by the system out of phonebook are rejected. ____________________ On Wed, Jun 10, 2009 at 11:30 AM, Kevin Oeba <oeba.kevin@gmail.com><oeba.kevin@gmail.com>wrote: Murigi, Can you share what with the rest of us what the corporate app does ? Im quite interested in C# applications. Thanks, Kevin