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4DOS shell - replacement for COMMAND.COM
Answering Machines, Caller ID
Application Launchers, Managers
Archiving and compressing programs
Automation Tools
Backup & Restore
Benchmarking
CD-ROM utilities
CD-ROM Utilities
Clipboard Tools
Compress EXE and COM files to save disk space
Computer memory info and management utils
Computer system information display programs
Controlling the booting process
Creating and using menus
Data Recovery
Desktop Enhancements and Replacements
Desktop Misc. Utilities
Desktop Sticky Note Programs
Directory utilities
Disk / Drive Backup Utilities
Disk / Drive Misc. Utilities
Disk catalog utilities
Disk Security, Erasure, Recovery
Disk utilities
Disk Utilities
DOS Programs For Macintosh Conversion
Drive Manager & Directory Utilities
Email Client, Server, Gateway Programs
Email Misc. Utilities
Email: Anti-Spam Related
Email: Bulk Email & Mailing List Programs
Email: MS Outlook Related
File & Disk Management
File & Folder Naming, Attribute Utilities
File Backup, Copying, Synchronizing
File Compression
File Compression Utilities
File Converters
File Find & Compare Utilities
File management and conversion utils
File Managers & Menu Systems
File Misc. Utilities
File Utilities
File Viewers & Browsers
Free working memory by swaping to high mem
Handy Desk-Top utilities and programs
Hardware
I/O Utilities
Keyboard utilities
Laser printer utilities and fonts
Launchers & Task Managers
Memory resident disks
Messaging, SMS, Pager, Voicema
Microsoft product support
Misc. Telecommunications Utilities
Miscellaneous Utilities
Other
Phone Dialers
Printer
Programs for the Windows 2000/NT Desktop
Registry Tools
Search and Replace
Serial Port, RS232, Model Utilities
Shell Tools
System Maintenance
System Utilities
System utilities
Terminal and file transfer programs
Terminate and stay resident utilities
Text/Document Editors
Uninstallers
Utilities for the mouse
Utilities for using archives
VGA monitor utilities
Video screen utilities
Windows Clipboard Utilities
Windows Start-up & Shutdown Utilities
Windows Wallpaper, Scheme, Icon Utils

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Home > System Utilities > I/O Utilities
Simtel Spotlight Programs
Spyware Doctor
SoundTaxi Media Suite
I/O Utilities
COMPORT
FREE Download COMPORT
The program is intended for transmitting of bytes to serial ports, manipulating by their baud rate, controlling of their LCR and MCR registers and of system speaker according to arbitrary timetable defined in user-written script file. All events are reflected on the screen. This program can be useful to people that develop devices connecting to computer by serial ports.
Released: October 06, 2003 Downloads: 4043
Company: Roman Rodygin Web Site: Click Here
OS: MS-DOS, Win 95/98/ME
16550u.zip
Download 16550u.zip
Scan for serial ports on system, enable 16550
Released: March 10, 1993 Downloads: 1465
Company: Brent Turner
OS: MS-DOS
16550s.zip
FREE Download 16550s.zip
Toggle the NS16550A FIFO buffer, w/TPas source
Released: April 11, 1988 Downloads: 889
Company: Simtel Legacy
OS: MS-DOS
1pr2a.zip
Download 1pr2a.zip
Swaps LPT1 and LPT2 printer ports
Released: May 17, 1989 Downloads: 903
Company: Simtel Legacy
OS: MS-DOS
34instal.zip
Download 34instal.zip
Adds DOS support for COMM ports 3 and 4
Released: January 02, 1990 Downloads: 1046
Company: Simtel Legacy
OS: MS-DOS
comst13.zip
Download comst13.zip
Comset v1.3: Modem/UART/serial port tester
Released: May 28, 1997 Downloads: 2722
Company: Simtel Legacy
OS: MS-DOS
16550doc.zip
FREE Download 16550doc.zip
16550 docs/utils. Do you need a 16550 UART?
Released: April 14, 1993 Downloads: 1210
Company: Michael Spalter
OS: MS-DOS
16550a.zip
FREE Download 16550a.zip
Toggle 16550 UART FIFOs on and off
Released: October 20, 1988 Downloads: 1103
Company: Simtel Legacy
OS: MS-DOS
addport.zip
Download addport.zip
Adds COM3/COM4 ports to DOS equipment list
Released: March 01, 1989 Downloads: 1434
Company: Simtel Legacy
OS: MS-DOS
auxil15.zip
Download auxil15.zip
Device driver redirects AUX output to CON
Released: January 08, 1992 Downloads: 604
Company: Simtel Legacy
OS: MS-DOS
aux2.zip
Download aux2.zip
Makes the AUX driver talk to the COM2 port
Released: March 20, 1987 Downloads: 624
Company: Simtel Legacy
OS: MS-DOS
breakbox.zip
Download breakbox.zip
Software-based RS232 breakout box
Released: November 07, 1986 Downloads: 1899
Company: Simtel Legacy
OS: MS-DOS
async1.zip
Download async1.zip
COMM driver [.ASM]
Released: March 20, 1986 Downloads: 1049
Company: Simtel Legacy
OS: MS-DOS
async2.zip
Download async2.zip
COMM driver [.ASM]
Released: July 22, 1988 Downloads: 759
Company: Simtel Legacy
OS: MS-DOS
async_ce.zip
Download async_ce.zip
COMM port driver
Released: August 30, 1987 Downloads: 1110
Company: Simtel Legacy
OS: MS-DOS
comhex42.zip
Download comhex42.zip
Serial communications display program
Released: April 21, 1988 Downloads: 3393
Company: Simtel Legacy
OS: MS-DOS
comhelp.zip
Download comhelp.zip
Comprehensive comm/tutor and UART tester
Released: October 31, 1987 Downloads: 1261
Company: Simtel Legacy
OS: MS-DOS
comfix12.zip
Download comfix12.zip
Windows COM port 'bug' fix/DOS COM port setup
Released: July 06, 1994 Downloads: 1592
Company: Simtel Legacy
OS: MS-DOS
comm.c
Download comm.c
COMM driver [.C]
Released: April 06, 1984 Downloads: 1523
Company: Simtel Legacy
OS: MS-DOS
dlm140.zip
Download dlm140.zip
Data Line Monitor: Turn PC into a datascope
Released: March 23, 1994 Downloads: 2124
Company: Simtel Legacy
OS: MS-DOS