The Null-modem emulator (com0com) is a kernel-mode virtual serial port driver for Windows. You can create an unlimited number of virtual COM port pairs and use any pair to connect one COM port based application to another. The HUB for communications (hub4com) allows to receive data and signals from one COM or TCP port, modify and send it to a number of other COM or TCP ports and vice versa.

Features

  • com0com: baud rate emulation
  • com0com: pinouts customization
  • com0com: noised line emulation
  • com0com: paired port settings monitoring (baud rate, data bits, stop bits, parity)
  • com0com: hiding 'unavailable' ports from user
  • hup4com: spliting data from one serial device into several virtual serial ports
  • hup4com: redirecting serial to TCP/IP and TCP/IP to serial
  • hup4com: RFC2217 - Telnet Com Port Control Option (client and server)

Project Samples

Project Activity

See All Activity >

Categories

Emulators, Serial, Telnet

Follow Null-modem emulator

Null-modem emulator Web Site

Other Useful Business Software

Monitor your Cisco ASA like an expert Monitor your Cisco ASA like an expert Icon
Monitor your Cisco ASA like an expert Icon

See how Network Insight™ for Cisco® ASA, a feature of SolarWinds Network Performance Monitor and Network Configuration Manager, can help.

Get visibility into the health and performance of your entire Cisco ASA environment in a single dashboard. View VPN tunnel status and monitor firewall high availability, health, and readiness. Automatically discover and filter within ACLs, show rule hit counts, and detect shadow and redundant rules. Automate the monitoring and management of your ASA infrastructure in a fully integrated solution. Try it free for 30 days!

Rate This Project

Login To Rate This Project

User Ratings

★★★★★
★★★★
★★★
★★
72
3
1
1
7
ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5

User Reviews

  • It does not work!!! In Device Manager it does not show up in Ports(COM& LPT) and I have tried it on a few computers now

  • Just like Martin I can't use it because the driver isn't signed. Great shame I've heard nothing but good about it.

  • Just like Martin I can't use it because the driver isn't signed. Great shame I've heard nothing but good about it.

  • Lack of a digital signature is a serious drawback, keeping me (and probably others) from use this software in a production system. As ReactOS team offers free driver signing service, there is no reason why the driver is not signed yet. Terms and conditions are listed on their "Driver Signing" wiki page.

  • com2tcp does not do true binary communications with the telnet filter. The recommended 0x0D padding feature only solves the problem in one direction.

Read more reviews >

Additional Project Details

Intended Audience

Advanced End Users, Developers, Testers

Programming Language

C, C++

Registered

2005-01-24