…Use it yourself…  This is developer special library by which they can add SMS functionality in their .NET windows application or Websites. This library uses Site2Sms.com to send SMS to non-DND mobile numbers in India. Indeed this library is free with no restriction. Courtesy  http://hybriona.com/hyb/blogs/wp-content/uploads/2012/05/276492_228671693835090_698288_n.jpg Details:- Filename : Net-SMSAgent.dll Platform : .Net Framework 2.0 or above Operating System : Windows Best Features:- Library is easy to understand and simple to implement. Sends unlimited SMS of 230 characters Faster and Reliable Best for Freebie/ open source programmers Limitations:- Cannot send SMS to DND numbers. Obviously, as it uses Site2Sms.com, so the receiver gets SMS from theirRead More →