Filename      Date   Size  Description
  16550a.zip    (881021)  20K  Toggle 16550 UART FIFOs on and off
  16550doc.zip  (930415)  23K  16550 docs/utils. Do you need a 16550 UART?
  16550s.zip    (880412)   5K  Toggle the NS16550A FIFO buffer, w/TPas source
  16550s13.zip  (910328)   9K  Toggle the NS16550A FIFO buffer, w/TPas source
  16550u.zip    (930310)  26K  Scan for serial ports on system, enable 16550
  1pr2a.zip     (890518)   1K  Swaps LPT1 and LPT2 printer ports
  34instal.zip  (900102)   3K  Adds DOS support for COMM ports 3 and 4
  addport.zip   (890301)   7K  Adds COM3/COM4 ports to DOS equipment list
  async.zip     (861022)  31K  Asynchronous communications routines
  async1.zip    (860320)  12K  COMM driver [.ASM]
  async2.zip    (880723)  15K  COMM driver [.ASM]
  async_ce.zip  (870831)  20K  COMM port driver
  aux2.zip      (870320)   3K  Makes the AUX driver talk to the COM2 port
  auxil15.zip   (920108)   1K  Device driver redirects AUX output to CON
  breakbox.zip  (861107)   5K  Software-based RS232 breakout box
  com3_4.zip    (881209)   4K  Device driver adds COM3/4 that MS-DOS forgot!
  comchk18.zip  (930218)  30K  Commchk 1.8: Serial port protocol analyzer
  comfix12.zip  (940707)  15K  Windows COM port 'bug' fix/DOS COM port setup
  comhelp.zip   (871031)  60K  Comprehensive comm/tutor and UART tester
  comhex42.zip  (880422)  30K  Serial communications display program
  comm.c        (840406)   4K  COMM driver [.C]
  comm.doc      (840406)   1K  Doc for COMM.C
  comprt25.zip  (930927)  29K  Config COM/LPT ports: Show address, IRQ & UART
  comsnd14.zip  (890105)  24K  Send arbitrary characters to COM port from DOS
  comst13.zip   (970529)  28K  Comset v1.3: Modem/UART/serial port tester
  comtrap.zip   (920109)   2K  TSR to trap unexpected COM port interrupts
  czcm11b.zip   (901211)   9K  Driver allows various mixes of COM ports 1-4
  db9-db25.zip  (870214)  435  Wiring info: DB9 to DB25 serial connector
  dcom20.zip    (910824)  36K  Captures COM port input. Requires two ports
  dlm140.zip    (940323)  25K  Data Line Monitor: Turn PC into a datascope
  fifo11.zip    (910422)   7K  Report type of UART (8250, 16550, etc.)
  fx16550d.zip  (931129)   3K  Corrects problem with AMI BIOS and 16550 UART
  ibmaux20.zip  (860424)   3K  Dual I/O driver for the AUX: device
  iomon2.zip    (920412)  32K  IO Monitor 386 control watches COM ports
  ioview.zip    (900624)   5K  Diagnostic - view of PC's I/O ports in action
  ip122.zip     (911117)   9K  Serial interrupt and port verification program
  kbfake10.zip  (940407)   9K  Redirects serial input as if from keybd, w/src
  komm.asm      (850707)  27K  Installable device drivers for COM1 and COM2
  komm.inf      (850707)   1K  Documentation for KOMM.ASM device driver
  lptfl101.zip  (971124)  11K  Redirect parallel port out to DOS file/device
  lpt_io_4.zip  (990721)  12K  Capture, view, playback, etc. digital data
  message.zip   (921109)  47K  Send msgs thru COM port between PCs, TSR w/src
  new14h.zip    (860807)   5K  DOS-extension add functions to comm routines
  ns16550.zip   (890615)   2K  Checks to see if NS16550AN serial chip is used
  ns_16550.zip  (910718)  37K  Test 16450/16550/16550a serial chips w/source
  ox.zip        (870707)   3K  Redirect DOS AUX I/O to keyboard/mono display
  para13.zip    (931225)  71K  Parallel port information & diagnostic util.
  pc_to_pc.zip  (880327)   1K  Assist on PC-PC direct connection
  pf271.zip     (920621)  35K  Port Finder: Display info/swap LPT & COM ports
  pipeln10.zip  (900813)  17K  TSR connects COM1 and COM2 serial ports
  port11.zip    (910313)  26K  I/O port debugging tool, with C source code
  portfind.zip  (880907)   5K  Locate & install serial & par. ports, COM3&4
  ports20.zip   (990121)  34K  PORTS: Tests functionality of system ports
  portst11.zip  (910210)  41K  Diagnostic program for serial/parallel ports
  prlink20.zip  (941202)  26K  File transfer prog. via printer/parallel port
  qic02a10.zip  (950214) 119K  Wangtek QIC-02 tape driver & Unix TAR I/O
  redev100.zip  (960909)   8K  Redirects AUX,COM1,etc to another char device
  resq232s.zip  (991221) 200K  ResQ232: Makes DOS an RS232 line monitor
  rs204.zip     (910930)  15K  Displays RS-232 serial port status
  rs232.zip     (861222)   3K  Source for COMM drivers (.ASM)
  rs232105.zip  (980203)  48K  RS-232 Bus Protocol Analyzer
  rs232of2.zip  (890209)   1K  Fix port conflicts, turns off all 4 COM ports
  rts12.zip     (900426)   8K  Toggle RTS for COM1 to COM4 ports
  sansint2.zip  (901123)  31K  Port utility - poll ports rather than use IRQs
  serial.aqm    (851208)   3K  Serial/COMM port driver (squeezed)
  serial.doc    (831203)   1K  Doc for SERIAL.AQM
  seril200.zip  (980621)  16K  Serial: Shows status of COM ports on screen
  serint.aqm    (851208)   3K  Interrupt-driven serial port driver
  slikmode.zip  (910325)   8K  New MODE: Set baudrate to any rate w/C src
  superv22.zip  (870210)  46K  Enhanced BIOS interrupt 14 comm support
  swapcom.zip   (890319)   1K  Swap COM1 with COM2
  swapport.zip  (890318)   1K  Swap LPT1 with LPT2
  tandy232.asm  (851006)   8K  Replacement for Tandy 2000 RS232 I/O handler
  timio3_0.zip  (911201)  71K  Timed record and playback COM port data
  toadmod1.zip  (890417)   4K  Set COM 1-4 to 19200/38400/57600/115200 bps
  tsrcomm.zip   (870909)  16K  TSR serial device driver
  uartbug.zip   (870309)  10K  UART and COM port debuging tool, TSR
  uartty12.zip  (920529)   8K  Displays type of UART chip for all comm ports
  whtprt40.zip  (911010)  12K  Displays system serial ports & IRQ assignments
  xport21.zip   (920115)  27K  Fast PC-to-PC RS232 serial line file transfer
  z404mpsc.zip  (910624)   5K  Zenith COM3 port driver fix for gov't Z-248