Meaning of COM Port Settings in WIN.INI

Last reviewed: November 21, 1994
Article ID: Q73234

The information in this article applies to:

Microsoft Windows operating system versions 3.0, 3.0a, 3.1, 3.11

SUMMARY

The information listed below describes the COM port settings in the [ports] section of the WIN.INI file as changed by the Flow Control options when selecting Ports from Control Panel.

MORE INFORMATION

When the Flow Control settings on a COM port are saved as xon/xoff, an "x" (without the quotation marks) is added to the appropriate COM port in the [ports] section of WIN.INI.

For example:

   com1:=9600,n,8,1,x

The "x" designates an xon/xoff software handshake.

When the Flow Control settings on a COM port are saved as hardware, a "p" (without the quotation marks) is added to the appropriate COM port in the [ports] section of WIN.INI.

For example:

   com2:=9600,n,8,1,p

The "p" designates a hardware handshake and infinite retries.

The absence of a letter at the end of a line donates Flow Control set to none.

KBCategory: kbsetup kbtool
KBSubcategory: win30 win31 wincomm
Additional reference words: 3.00 3.0 3.0a 3.00a 3.10 wincomm 3.11

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Last reviewed: November 21, 1994
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