📎 AI Summary:
The thread discusses transferring data between a Windows 10 PC and an MS-DOS 7.10 (and Windows 3.11) system via serial port, with initial questions about suitable software and timing considerations. A respondent suggests using a USB-to-serial adapter, identifying the COM port, configuring communication settings with the MODE command, and copying files with the COPY command over the serial connection. Overall, the conversation provides practical guidance for setting up serial data transfer between modern Windows and legacy DOS systems.
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MIRKOSOFT

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Thread Author #1
Hi!

I need to transfer data between my PC (Windows 10.1903 x64 Pro) and notebook with MS-DOS 7.10 (also Windows 3.11 for Workgroups - but without Win32s)
I want to use serial port 'cause DOS is not so familiar with USB.
I know that serial transfer was possible even on my hobby computers - Commodore 8-bits.

But what a software to use for Windows and for DOS?
Also - can anybody recommend me important things like timing etc?

Thank you for help.
Miro
 

Solution
Neemobeer
You should be able to connect a USB to serial cable. On the sending computer look in device manager for the COM# of the device.

For example lets say it's COM2. Then run the following two commands from a command prompt.

MODE COM2: BAUD=b PARITY=p DATA=d this command you should only need to issue once with in the command prompt and you will need to replace b,p,and d with the appropriate values configured on the DOS machine

Then to copy you would simply type copy somefile.txt \\.\COM2
For binary file copying COPY somefile.zip /B COM2 /B
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Neemobeer

Neemobeer

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#2
You should be able to connect a USB to serial cable. On the sending computer look in device manager for the COM# of the device.

For example lets say it's COM2. Then run the following two commands from a command prompt.

MODE COM2: BAUD=b PARITY=p DATA=d this command you should only need to issue once with in the command prompt and you will need to replace b,p,and d with the appropriate values configured on the DOS machine

Then to copy you would simply type copy somefile.txt \\.\COM2
For binary file copying COPY somefile.zip /B COM2 /B
 

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