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How do I use my ComStar SVD in DOS after exiting Windows 95?
NOTE:
This pertains to restarting the computer in MS-DOS mode. You do not need to follow these steps if you are
going to use the modem in an MS-DOS window from within Windows 95. This MS-DOS window inherits all of
Windows 95's device settings.
Once you restart the computer in MS-DOS mode, none of the virtual device drivers in Windows 95 are running.
You can create a DOSSTART.BAT batch file to execute programs when the computer has been restarted in MS-
DOS mode. You must use the SETPORT utility to install PORTWIZ in order to configure your modem for use in
MS-DOS mode. Instructions follow:
•
From the Start menu, choose Programs and then select MS-DOS prompt.
•
If your modem comes with the ZOOM LINK CD-ROM, insert it in your CD-ROM reader. If your model
comes with floppy disks, insert the disk labeled BitWare Disk 2 in your floppy drive.
•
From the DOS prompt, type A:\ (or the drive letter of the correct drive). and press Enter.
•
At the A:\ (or B:\ or D:\) prompt, type cd setport and press Enter. This opens the SETPORT directory.
•
Type SETPORT 3 and press Enter to begin the SETPORT batch file. In this example we are instruct-
ing SETPORT to configure the modem for COM3. SETPORT installs another program, PORTWIZ, on
your hard drive and uses it to configure your faxmodem.
PORTWIZ sets the faxmodem to COM3 and the first interrupt (IRQ) that is free (it checks IRQs 12, 11,
15, 10, 7, and 5 in order). PORTWIZ displays the base address and IRQ that it assigned. Copy this
information down on the Important Information page of your Quick Start guide.
In all but the rarest circumstances, SETPORT 3 successfully sets the modem to COM3 and a free
IRQ, usually 12 or 11.
•
SETPORT prompts you to automatically insert a line in your system's autoexec.bat and system.ini
files. Press N to both prompts. You do not need to modify these files because your operating system is
Windows 95 (even though you will be using MS-DOS mode.) You do, however, want to write down the
line that Portwiz would have added to your autoexec.bat file. For instance:
portwiz 3e8 12
•
After you exit from SETPORT and return to the DOS prompt, type C:\WINDOWS and press Enter.
•
Type EDIT DOSSTART.BAT and press Enter (this starts the DOS editor.)
•
On the first blank line type PORTWIZ 3e8 12 (or whatever values portwiz recommended).
•
Save this file and Exit the editor.
From now on, every time you restart your computer in MS-DOS mode, Windows 95 will execute the
DOSSTART.BAT file which will configure your modem for the correct communications port. For additional informa-
tion on using the SETPORT and PORTWIZ utilities, please refer to your ComStar SVD Owner's Manual, also
available in Acrobat PDF format on your ZOOM LINK CD.
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