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Com port problem
Com port won´t work with some of my software. Tried a usb-to-serial adapter, and it works in some cases, but it´s assigned to Com5, and some (older) software only supports Com1-4. Computer is Inspiron 8600 with XP. Any help appreciated.
WillyTee
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November 7th, 2003 23:00
You can use your adapter to do the below:
Com 1 and Com 2 are physical ports and have IRQ assignments
From there the ports are virtual There 256 of them. The
problem is once they are assigned they cannot be deleted,
but they can be un-installed there a trick to do. I had a
laptop that I was having issues with and had gone up to
port 16, from failed installs. The program would not
recognize anything above port 5. When you install
something it is automatically assigned the first open
port, but it goes to the higher # ( if 5,6,7 are open and
8,9 are (in use) it will assign port 10 you install
something, thus the problem.
How I corrected it was to take a USB modem and keep
installing it and go into the device manager and change it
to a port that showed (in Use) that I knew was not, then
when that port is accepted go back in and uninstall it.
Keep doing it over and over till you get them all out.