NetworkActiv AUTAPF
Configurable UDP and TCP port forwarding. With TCP port forwarding you can hide your web-server behind a gateway computer for added security. With UDP port forwarding you can run a multiplayer game server behind a gateway computer for added security and versatility. ... Can be run without installing (if desired). ... Notice: This is 100% freeware; No ads, banners, spyware, or nags. ... Can be set up to hide in taskbar. ... Can be set up to bounce connections back to connector (on same or different port).
http://www.networkactiv.com/NetworkActivAUTAPFv1.0.exe - 168Kb - Download - Screenshot

NetCFax networked fax system
Fully networked fax server plus clients system that uses TCP/IP connectivity for all communication between server and clients. Clients can have access to just their own, or all faxes held on the server, depending on login rights they are assigned. The fax client fully supports multiple... No network shares or user permissions are required on the fax server's machine due to the use of TCP/IP for all connections between server and clients, making the system easy to install and also more secure. ... A full programmers API is provided to allow you to "fax enable" your own applications, even...
http://www.netcplus.com/pub/downloads/ncfxserver300.exe - 16Mb - Download - Screenshot

Enterprise Accelerator
This program has been designed to enhance and manage your office or developer workstations for greater productivity.
http://www.smartalec2000.com/download/prod.exe - 2Mb - Download - Screenshot

VCX Library
VCX library is a set of ActiveX controls designed for developers of audio streaming projects, such as voice chat, web chat, multi-client conference and similar applications. VCX library provides real-time, low latency multi-client audio streaming over TCP/IP networks. ... It includes efficient components for sound recording, playback, encoding, mixing, resampling, reading and writing wave files, volume controls access and efficient TCP/IP server and client components for peer-to-peer, multi-user and broadcast audio communications.
http://lakeofsoft.com/vcx/vcx30demo.exe - 2Mb - Download - Screenshot

sMonitor
sMonitor is a network monitoring software that allows you to verify the network connectivity of TCP/IP hosts on the Internet and LAN. The program periodically pings, or checks TCP and UDP ports on user specified computers or other network devices. If the destination host fails to reply to a... sMonitor can run as standard Windows application or NT service. ... Based on test results, the program can operate remote systems (power management, reboot, alarm reporting) by modem and telnet using custom scripts.
http://yarovy.com/files/sMonitor.zip - 3Mb - Download - Screenshot

Multicom.Net
While the operation of different facilities, which are connected to a computer via serial port, there may appear the necessity to start up utility program (for these facilities) not in the machine, to which the facilities connect directly, but in the remote machine, that is connected to the... Net and TCP/IP. ... The use of our product gives you the possibility to give the remote access to serial port via TCP/IP. ... Net server is a service which realizes the exchange between a real driver of the serial port and TCP/IP.
http://www.intellidriver.com/downloads/products/multicomnet.zip - 283Kb - Download

SoxGate
If you cannot read mail or use other Internet services due to firewall restrictions, then this is the right app to help you. SoxGate can redirect TCP/IP connections from local machine thru Socks server.
http://www.rugila.com/soxgate/soxgate.zip - 19Kb - Download

IPNetStat
Graphical network statistics showing open TCP/IP ports and their connections. Allows for printing or saving to a text file as well as the ability to hide connections to the local machine.
http://www.ipworx.com/product/netstat/netstat1.zip - 5Mb - Download - Screenshot

CC File Transfer
CC File Transfer is a web based file transfer software built for people that need transfer file pc to pc regularly. it features in ease of use, speed, reliability, and security. CC File Transfer eliminates the hassles of FTP and limitations of Email. ... Transfer file over the Internet or home network using TCP/I P. ... Best of all, CC File Transfer can transfer file over the Internet or home network using TCP/IP. ... Without client software installation. ... 4. ... Even transfer file between Windows and Linux.
http://www.cc-file-transfer.com/download/cc-file-transfer-setup.exe - 494Kb - Download - Screenshot

Network Troubleshooting Analyzer
Packet Analyzer pro edition is an advanced packet analysis and sniffing tool with powerful protocol decodes capabilities. It can capture all traffic transport over local network segment and decodes all major and frequently used protocols including TCP/IP, UDP, HTTP, HTTPS, SMTP, POP3, TELNET,... Packet Analyzer Key Features: Smart Real-time packet capturing and analyzing; Reconstructs TCP/IP sessions and enables you to see data in their original format; Capture, display and save transaction information such as user name and password and the entire message Capture Pop3 and SMTP emails,...
http://www.javvin.com/packetpro_demo.zip - 7Mb - Download - Screenshot