4
PCWinTech.com
1,305
Freeware
Simple Port Tester is a neat application created to test TCP and UDP ports.
Virtual Serial Port Software
4
Shareware
Monitor, analyze and save logs from your system's RS232/422/485 serial COM ports.
4
X-Lent Electronics
248
Freeware
It is also a very handy utility during your LPT port development activities.
9
Nsasoft LLC.
2,787
Freeware
List available hosts, open ports, and their characteristics.
1
Hristo Nikolaev
3
Open source
B&W Port Scanner is a program that will scan your TCP ports.
18
SimpleComTools
336
Freeware
TCP Test Tool can be used to diagnose TCP traffic on any IP network.
IDT Corporation
68
Freeware
The dialer uses one local UDP port and one local TCP port.
37
NetworkActiv
84
Shareware
NetworkActiv AUTAPF is a UDP and TCP port forwarder.
DataSet
12
Freeware
A multi-threaded and fast TCP port scanner.
22
Foundstone Inc.
15
Freeware
A powerful connect-based TCP port scanner, pinger and hostname resolver. Multithreaded and asynchron....
2
10-Strike Software
82
Shareware
Send an ICMP packet (ping) to a device, connect to a required TCP port.
1
Mike Gavaghan
67
Open source
This tool is handy if you encountered unexpected TCP port conflict exceptions.
2
Flachmann & Heggelbacher
940
Shareware
Establishes TCP connections, accepts a TCP connection on a local port, etc.
4
AGG Software
694
Freeware
COM Port Stress Test is a tool for testing a COM or RS232 port (device).
24
SteelBytes
55
Shareware
TCP/IP port redirector with many features for the advanced user.
Gabriele Giorgetti
9
Open source
Knocker is a simple and easy to use TCP security port scanner.
