1)   VbSMS 4.0
VbSMS is designed to Send SMS messages through GSM phones connected to your PC/server by Infrared, Bluetooth or data cable. Samples provided for Visual Basic, Visual C# .NET.
Send SMS, VB SMS, short message,

 2)   UltraSMS 1.5.0.0
With UltraSMS you can save money sending SMS from your pc. You can use also useful options like scheduled delivery, anonymous SMS, Group SMS, Unicode, Long, etc. Register at http://www.agiletelecom.com and obtain a free test account.
sms, send sms, sms send, unicode sms, nowsms, smsc, sms gateway, gateway sms, freesms, gateway,

 3)   ZapitSMS 1.2
ZapitSMS is an easy to use 2-Way SMS tool for Windows with instant replies, address book, Outlook add-in and Bulk SMS capabilities. Combined with a powerful multi-user account management system, ZapitSMS will meet your SMS business needs.
sms, send text message, send sms, sms from outlook, bulk sms,

 4)   ZapitSMS For Lotus Notes 1.0
ZapitSMS is an easy to use 2-Way SMS tool for Lotus Notes. Combined with a powerful multi-user account management system, ZapitSMS will meet your SMS business needs.
SMS Text Messaging for Lotus Notes, Lotus Domino Text Messaging, PC to Mobile Messaging, SMS from Lotus Notes, SMS, Send SMS,