|Platform:||PC DOS, MS DOS, FreeDOS, DR DOS|
|License:||GNU General Public License v3|
|Latest release:||October 29th, 2011|
IRCjr is a small, lightweight IRC client for DOS that is capable of running well on anything from the slowest original PCs and clones to the latest emulated and virtal machine environments. The TCP/IP code is built into it so all that is needed is the packet driver for the Ethernet hardware that you are using.
TCP/IP parameters for the TCP/IP portion of the code can be set using static configuration or using the DHCP client included in the mTCP  distribution, of which IRCjr is one of the applications.
IRCjr is open source as of May 2011. Earlier versions were free but source was not provided. The mTCP project  is hosted at Google Code. IRCjr can be downloaded from there, or found in the current FreeDOS distribution  .
- CGA, MDA, EGA, and VGA display support with resolutions from 80x25 to 80x50
- Standard 'split-screen' layout: chat area on top, 1 status line, 3 lines for user input
- User configurable backscroll buffer
- Toggleable beeper, timestamps, and logging to a file
- Fast - very usable on the oldest 8088 based systems
- Multiple channels, each in their own virtual window
- Client-to-Client protocol message ("/me", "/version", and "/ping")
- Runs on DOS 2.1 and up in less than 256KB
Tested machines and environments
Partial list of machines
- Early machines: IBM PC, IBM PC XT, IBM PC AT, IBM PCjr, IBM Convertible, Compaq Portable 1, Hyundai First Step, DG One, other clones
- IBM PS2 series (including Model 25, L40SX laptop, etc.)
- Pentium class and higher: Pentium 133, 166, Pentium II, Dell Optiplex GX270, Acer Aspire One, etc.
- Emulation environments: DOSBox (with HAL9000 "megabuilds"), VirtualBox, VMWare, SWSVPKT with Windows XP, Fake86
If it runs DOS and it is a close BIOS compatible machine, it will probably work. I have not found a machine that it does not work on yet.
Partial list of network cards:
- Ethernet cards: AMD PCNet, NE1000, NE2000, 3Com 3C503, 3C509, Davicom 9008, Intel 8/16, Intel EtherExpress, WD8003, SMC 80x3 series, Accton EN166x, RTL 8008, RTL 8019, UMC UM9001L, too many to list (ISA, PCI, emulated, etc.)
- Parallel port adapters: Xircom PE3 series
- Serial port: PPP and SLIP
In general, if it is Ethernet or emulates Ethernet and it has a packet driver it works. This includes SLIP and PPP packet drivers that provide Ethernet emulation. But you need to have the packet driver.