

USING THE DECTALK EXPRESS TSR IN WINDOWS.

To use the DECtalk Express TSR driver with Microsoft Windows applications, 
or in a DOS box under Windows, you will need to prevent Windows from taking
over the serial port that is connected to the DECtalk Express.  The normal
DECtalk Express Install program reserves the comm port it is using which
should prevent any conflicts. However if the problem persists there is
an additional step to accomplish this.

A.  EDITING  DTEXP.BAT  and  SYSTEM.INI

NOTE: If your system does not use the standard address and IRQ assignments 
for serial ports, DO  NOT  ATTEMPT  TO  USE  THIS  METHOD.

	1. Change to your DECtalk Express directory (typically C:\DTEXP).

	2. Make a backup copy of your DTEXP.BAT file:

		COPY  DTEXP.BAT  DTEXP.BAK

	3. Using your favorite TEXT editor, edit the DTEXP.BAT file. Find  
	the line starting with the word "debug".

		a. If your DECtalk Express is connected to COM1 or COM3, 
		    change the line to read:

			DEBUG  <  C1C3.DBG > NUL

		b. If your DECtalk Express is connected to COM2 or COM4,
		   change the line to read:

			DEBUG  < C2C4.DBG  > nul

	4. Change to your Windows directory (typically C:\WINDOWS).

	5. Make a backup copy of your SYSTEM.INI file:

		COPY  SYSTEM.INI  SYSTEM.BAK

	6. Using your favorite TEXT editor, search the SYSTEM.INI file for
	any instances of lines that start with COMxBASE (where X is 
	'1' and '3' if your DECtalk Express is connected to either COM1 or 
	COM3, or X is '2' or '4' if your DECtalk Express is connected to 
	either COM2 or COM4).
	
	Comment out those lines by adding a semi-colon to the beginning of 
	each line. Save the file, close the editor and restart the computer.

	7. Your system should now be able to accept DECtalk Express TSR 
	commands without interference from Windows trying to control the 
	port.

End of file.
