At 09:32 AM 8/10/02 +0000, you wrote: >Can someone tell me the difference between: > >EPPPD.EXE 09-19-1997 49.258 bytes long >EPPPD.EXE 09-20-1997 45.638 bytes long > >I see no difference using both. > >To dial, I use COMTOOL with excellent results.
I ddidn't memorize the history of EPPPD but the approximate version is that source code for EPPPD05 was made available to a person who then modified it and released it as EPPPD06. I think _that_ source code is also available on a selective basis - you have to ask for it? Anyone can re-use an existing name and recompile if they have the source code for a program. One version of your EPPPD.EXE may be version 5 while the other is version 6 or someone could have tried modifying version 5 to something else. Difficult to know which it might be. >Has anyone used only DOS's ECHO as: > >echo ATZ >echo ATDT06102221515 > Com1 > >I am missing something, because it does not work for me. The basics are that there are STDOUT (standard output - normally your screen but at one time this could have been a printer), STDERR (faster more direct writing to your screen), COM1-COM4 (was only COM1 to COM2 for many years), LPT1 (parallel port #1) and possibly an LPT2 (second parallel port), CON (your keyboard), TTY and AUX (auxillary serial ports). You can do "copy con MYFILE" and type anything you want put in that file then end the process by pressing ctrl-Z which closes the file. This is a very direct way of using DOS that dates back to several decades ago but does continue to work if/when the need arises. :-) The echo command defaults to STDOUT which are a collection of routines to format output to a monitor screen. If you redirect this to a COM# port where your modem is either attached (external) or installed (internal) the echoed characters would be sent through the bios serial port routines to your modem. These BIOS routines are referred to as the INT14h BIOS hook and were limited to 9600 baud originally then improved to 19,200 baud. They were really designed to feed a serial printer - not for telecom as most seem to think. I think there are instructions for using TTY to transfer from one machine to another within the documentation for XPORT21 but not sure, might've been another transfer program I'm thinking of? You can, if you know how, send a binary of a small transfer program to a second machine using TTY then use _that_ binary to complete a transfer of files between the two machines. Mainframe programmers apparently do this sort of thing when they don't find a compatible protocol on another machine they install one, use it, then delete it when they are finished. Linux users know this as CTTY If I remember correctly. What you need to be able to use "echo" is TTY. Do a search using "TTY" and find a detailed explanation of how it can be used. Many have forgotten that those very raw I/O routines exist within DOS. It will be educational from the historical perspective and certainly won't hurt anything to try it. :-) Charles Angelich The Ghost in the Machine! DOS and W31 Tech website: http://www.undercoverdesign.com/dosghost Stories, poems, music, and photos website: http://www.undercoverdesign.com/dosghost/faf To unsubscribe from SURVPC send a message to [EMAIL PROTECTED] with unsubscribe SURVPC in the body of the message. Also, trim this footer from any quoted replies. More info can be found at; http://www.softcon.com/archives/SURVPC.html
