DDPLus63 - Door Driver Routines for
  Borland Pascal 7.0 - Complete with 
  Documentation and samples on how to
  make door programs using Turbo Pascal.
  Routines originally by Scott Baker
  and augmented/updated by Steven Lorenz. 
  The DDPLus package supports most BBS
  Software packages, including PC Board
  Vers 15 & WildCat 3.91. Does not require
  a fossil, but will make use of one if it

  JPDoor V4.1 Door Writing Toolkit for Turbo
  Pascal 5.5/6.0/7.0 Supports RA, QBBS,
  SuperBBS, ProBoard, and any BBS that can
  create a dorinfo1.def or Door.Sys file.
  Contains EVERYTHING you need to write a door,
  from Beginner to Advanced! Source Code is
  available.

  This Turbo Pascal unit accepts user input  to
  dial  Hayes  compatible  modems.   The  phone 
  number  may be numeric or alpha (acronyms) or 
  a mix of both. Bios interrupt $14 is used  to 
  send  characters  to  the  serial  port.  The 
  interrupt will return information in register 
  ah, and al if  your  interested  in  checking 
  them.   A  good  bios services reference will 
  contain the return  codes  This  unit  should 
  work on IBM pc's and compatibles. Renaissance 

  NAME: Personal Communications Lib for Pascal
  KEYS: LIBRARY XMODEM YMODEM ASYNC SERIAL COMM
        RS232 MODEM 16550 DIGIBOARD BOCABOARD
  FILE: PCL4P42.ZIP    VER: 4.2    DATE: Sep 94
  REG$: MarshallSoft Computing, Inc. --- $65.00
  DSCR:   PCL4P  is  an  asynch  communications
  library supporting COM1-COM16 to 115200 baud,
  4+ ports concurrently,  dumb  DigiBoards  and
  BOCA   boards,  INS16550,  interrupt  driven,
  RTS/CTS  flow  control.   Includes   terminal