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1993-03-29
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DELRINA TECHNOLOGY INC.
895 Don Mills Road 6830 Via Del Oro
500-2 Park Centre Suite 240
Toronto, Ontario San Jose, California
Canada M3C 1W3 U.S.A. 95119-1353
Product Support Numbers
BBS:(416)441-2752 WinFax PRO 3.0 Only:(416)441-0921
Fax Back:(416)443-1614 All Other Products:(416)441-1026
Fax:(416)441-0774
======================================================================
T E C H N I C A L N O T E S
Product: WinFax PRO 3.0, WinFax PRO 2.0
Document No.: 2009
Document Date: March 4, 1993
======================================================================
Subject: Running WinFax on Slow Systems (386SX or Slower)
Situation:
==========
You have difficulty sending or receiving a fax with WinFax PRO on a
386SX system, or on any slow system.
Solution:
=========
A lack of system resources affects timing and likely causes this
situation. Change your system as follows and try sending a fax after
each change.
1. To free up system resources within the system, add the following
settings in the SYSTEM.INI file under the [386Enh] section:
Comboosttime=30 increases amount of time for a serial IRQ
Comxautoassign=0 allows Windows to assign the COM port
automatically
ComxBuffer=1024 increases the size of the serial buffer
ComxProtocol=XOFF sets the flow control to Xon/Xoff
where "x" is the COM port the fax/modem is actually using, such as
for Com1Buffer=, Com2Buffer=, Com3Buffer=, ....
2. In WinFax PRO 2.0 only, set the Max Tx Rate to 4800 baud in the
WinFax Setup dialog box.
3. Set the minimum time slice to 30 milliseconds in the 386 Enhanced
section of the Windows Control Panel.
4. Run Windows in Standard Mode.
Note: If you run Windows in Standard Mode, you cannot use the OCR
(optical character recognition) feature available in WinFax
PRO 3.0.