NetSender Pro
»NetSender Pro« is an efficient, easy to use tool to send short messages in NT networks. By sending messages you can be sure that your co-workers see the messages immediately on their screen without the necessity to run a mail program or to look into the mail inbox. ... Additionally, every written message is saved in the message history and can be loaded back into the message form in order to be sent again. ... The message history and the user list can be printed. ... Within fractions of a second the message will appear on the screen(s) of the recipient(s).
http://www.aborange.de/download/netsend.exe - 1Mb - Download - Screenshot

SMS-it
SMS-it! allows you to send a short message (SMS Short Message Service) to a mobile phone using your computer. SMS-it supports Picture messages, Caller Group Graphic, Operator Logo, Ringtones and Flash SMS. The messages can be sent through an attached modem, through an internet connection or... The phonebook can also be downloaded and synchronized with SMS-it!. ... The Integration with MS Outlook is possible. ... If a mobile phone is attached to the computer (IE through the IR port), the contents of the inbox can be downloaded and stored in folders.
http://www.mawnet.com/sms-it.zip - 4Mb - Download - Screenshot

Atelier Web SMS Pro
AWSMS Pro uses the modem already installed on your PC to send GSM SMS messages. You don't need to muddle with cables and infrared devices, you don't even need a cellular phone, the messages are sent directly to a SMSC (Short Message Service Centre) which in turn dispatches them immediately to...
http://evalsoftware.atelierweb.com/awsms10.zip - 1Mb - Download - Screenshot

LanTalk XP
Effective communications for the office and home environment. If you work in a busy environment and need to communicate with others in the office, or maybe even colleagues in another building, make life easy for yourself and install LanTalk. LanTalk enables you to talk in real time to anybody on... LanTalk also features a dual window enabling you to view a message in one window while writing a new message in the other. ... There are facilities for creating automatic replies for occasions when you are not available (in a meeting or at lunch, for example), along with a fast reply option...
http://www.cezeo.com/downloads/lantalk-xp.exe - 828Kb - Download - Screenshot

Atomic Mail Sender
Internet marketing relies heavily on fast delivery of large numbers of messages to customers. Times when we were sending out several e-mails using our traditional e-mail client software are left well behind. Today, modern businesses require immediate delivery of messages to hundreds of thousands... The built-in message editor provides one of the most convenient interfaces in the programs of this type. ... mail service providing the shortest possible way for sending your message! ... Atomic Mail Sender is capable of sending of unlimited number of e-mail messages to unlimited number of...
http://www.amailsender.com/d/ams.exe - 2Mb - Download - Screenshot

Group Text Messenger
This is an SMS (Short Message Service) standalone application that allows various groups of users to be sent SMS messages in just one instruction.
http://www.accusoftware.co.uk/downloads/zips/grouptextmessaging.zip - 3Mb - Download - Screenshot

HS GSM SMS C Source Library
HS GSM SMS is a C source library that provides a PC-based user application with access to a mobile phone's Short Message Service (SMS) functionality, according to ETSI standards: GSM 07. 05 (ETS 300 585) - "Use of Data Terminal Equipment - Data Circuit terminating; Equipment (DTE - DCE)... 40 - "Technical Realization of Short Message Service - Point-to-Point. ... However its flexible architecture and the fact that it is supplied with full C source code make it possible to port it to any platform.
http://www.hillstone-software.com/hs_gsm_sms_demo.exe - 308Kb - Download - Screenshot

FastSMS III
FastSMS III is a simple, reliable tool for Short Message Service (SMS). This program sends text messages to the cell phones of any subscribers whose providers support the service. It has an exclusive and easy-to-manage interface adapted to SMS standards and offers you more extended features for... Using FastSMS III you do not depend on any SMS centers, sites or SMS gates, so it increases your message confidentiality and saves your time and money. ... The built-in phone book stores all your phone numbers and recipients.
http://simpleforce.net/fastsms/fsms33.zip - 881Kb - Download - Screenshot

Adaptive Mailing List
Adaptive Mailing List (AML for short) is a software applicaton the task of which is to distribute email messages among groups (a. k. a. Lists) of recipients. It is created on Microsoft technology (Windows, . NET) in order to be readily available to a majority of computer users in the world. ... Zero duplicates: If the same user should receive a message through several Lists on the same AML server only one copy is delivered. ... This makes it possible to send messages across a selection of lists without angering recipients by multiple copies of the same message.
http://www.commtact.com/AML/download.html - 2Mb - Download - Screenshot

AGAVA AntispamServant
AGAVA AntispamServant is a trainable filter featuring message content analysis. AntispamServant is characterised by high-speed and efficient operation with all e-mail clients, and does not require them to be specially adjusted. AntispamServant is analysing the spam and non-spam message samples... AntispamServant: - applies a complex formula to deduce the summarized spam coefficient of the e-mail messages, thus preventing the problem of short-cut calculation; - accounts for the human error factor in the course of the training process and provides opportunities for subsequent correction; -...
http://www.antispamservant.com/download/antispam.exe - 1Mb - Download - Screenshot