9
Nsasoft LLC.
2,774
Freeware
List available hosts, open ports, and their characteristics.
4
PCWinTech.com
1,301
Freeware
Simple Port Tester is a neat application created to test TCP and UDP ports.
5
Lalim Software
167
Freeware
Lalim Parallel Port Control can control hardware through the parallel port.
3
HW group
1,724
Freeware
HW Virtual Serial Port allows creating virual serial port drivers.
1
DesertHail
ServerTalk lets you communicate directly with a TCP or UDP port on a server.
13
DOCADO
53
Freeware
Operate your Printer-Port CNC machinery from any modern laptop, notebook, etc.
2
Flachmann & Heggelbacher
924
Shareware
Establishes TCP connections, accepts a TCP connection on a local port, etc.
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.
24
SteelBytes
54
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.
DataSet
12
Freeware
A multi-threaded and fast TCP port scanner.
20
Coral Works, Inc.
5
Software-based TCP/IP port forwarder and network administration service.
22
Foundstone Inc.
15
Freeware
A powerful connect-based TCP port scanner, pinger and hostname resolver. Multithreaded and asynchron....
