1)   ActiveSMS - GSM/GPRS ActiveX 1.0 ActiveSMS is an ActiveX DLL that allows you to send and receive SMS (also binary and flash) through GSM terminals. It handles voice calls and the phonebooks of both SIM and terminal. It supports the terminals of the most important producer companies. 2)   ActiveSMS - OCX 1.0 ActiveSMS is an ActiveX DLL that allows you to send and receive SMS (also binary and flash) through GSM terminals. It handles voice calls and the phonebooks of both SIM and terminal. It supports the terminals of the most important producer companies. 3)   ActiveSMS - SMS ActiveX 1.0 ActiveSMS is an ActiveX DLL that allows you to send and receive SMS (also binary and flash) through GSM terminals. It handles voice calls and the phonebooks of both SIM and terminal. It supports the terminals of the most important producer companies. 4)   HS SMS DLL (GSM 07.05) 1.0 HsSmsDLL is a Windows DLL enabling applications to send, receive, read and delete SMS messages via a GSM modem attached to COM port, according to GSM 07.05, 03.40. The library comes with integrated encryption AES,DES,3DES,ARC4,CAST128,Blowfish,2fish