DiamondCS Port Explorer 2.100 (by Diamond Computer Systems)
Port Explorer is an easy to use graphical port to process mapper.

RegistryProt 2.0 (by Diamond Computer Systems)
RegistryProt is a free registry monitor that alerts you to changes immediately.

DiamondCS Port Explorer 2.100 (by Diamond Computer Systems)
Port Explorer is an easy to use graphical port to process mapper.

Network Serial Port Kit 5.1 (by FabulaTech, Inc.)
Allows you to connect any serial port devices over TCP/IP network or Internet

easy Look at Net 0.8.7 (by Look@Net.com)
easy Look at Net is a simple ports scanner, packet sniffer and other tool

Advanced Administrative Tools 5.92 (by G-Lock Software)
Network Diagnostic Software - detect open ports, audit your network security

Advanced Virtual COM Port 2.3 (by KernelPro Software)
Create virtual COM ports connected with virtual null-modem cable, share COM port

Serial Port Sniffer ActiveX Control 1.0 (by ELTIMA GmbH)
Serial Port Sniffer ActveX Control monitors and edits data flows of serial ports

Serial Port Sniffer ActiveX Control 1.0 (by ELTIMA GmbH)
Serial Port Sniffer ActveX Control monitors and edits data flows of serial ports

FreePortScanner 2.5 (by Nsasoft LLC.)
Free Port Scanner is a small and fast port scanner for the Win32 platform.

Advanced Port Scanner 1.3 (by Famatech)
Advanced Port Scanner is a fast and easy-to-use multithreaded Port Scanner.

Serial Port Terminal 4.1 (by ELTIMA Software GmbH)
Serial Port Terminal Software - multi-purpose rs232 ports communication manager.

Netoscope 1.6 (by Basta Computing, Inc.)
Netoscope: Internet server monitor.

The Dude 1.1 (by MikroTik)
The Dude will layout your network on a map and will monitor services of devices

Sniff-em Packet sniffer 1.12 (by YASC LTD)
Sniff'em 1.12 is a Windows based allround Packet sniffer and Network analyzer.

SNMPTest 1.03 (by Noel Danjou)
Query and monitor any SNMP-compatible device

MailMonitor 1.6.3 (by DigiArch.org)
If you have mail problems, MailMonitor shows you what's going on at port level.