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Tripredacus

How can I change a COM port via CMD?

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Tripredacus    286

I am trying to determine how to change a COM port via CMD or other potential methods. I have tried using change port/chgport but it returns to me an error:

Unable to create mapping for port COM1. Error Code = 0x2

chgport COM1=COM2

This is the /query output:

AUX = \DosDevice\COM1COM1 = \Device\Serial0

Am I using this command incorrectly? I am logged in directly to the PC, physical not VM.

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Yzöwl    30

I'm not sure of your intention but it appears to me that you are trying to map COM2, (which doesn't exist in your query), to COM1 (which already exists).

I thought that the idea of this command was to be able to utilise ports other than COM1, COM2, COM3 and COM4 because they were the only ones supported by MS-DOS programs.

CHGPORT COM6=COM1 maps COM6 to COM1 such that COM6 can be utilised by the DOS program as COM1.

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