1)   Wireless Communication Library VCL Lite 6.0.0.0
Wireless Communication Library for Delphi, CBuilder and BDS enables your application to use bluetooth, wifi, irda and serial port connection

 2)   Wireless-DS for gsm modem 2.0
Wireless Dev Studio is an ActiveX DLL that allows you to send and receive SMS (also binary, flash, Unicode (UCS2) and ultiple SMS) through GSM modems. It handles voice and GSM data calls and the phonebooks of both SIM and terminal.

 3)   Headwind GSM Modem Driver 3.1.0717
This SMS software makes your PC able to send and receive SMS by connecting the computer to the mobile device. SMS messages are sent from your own number. The software provides a COM API for automatic SMS processing in third-party applications.