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Dear Experts,
I need to retrieve the physical address of my parallel port to send event triggers to a computer acquiring EEG data. In previous Windows version, I could find it in Resources>Input/Output range, but in Windows 11 the Resources tab is missing and the details tab of the port lists many different properties, but not the Input/Output range. I tried with '278', '378' and '3BC' but none of them works.
Manufacturer: SUNIX. Location: Location 4 (SUNIX LPT Port 1).
Thanks for any feedback,
Best,
Marco Buiatti
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Go to Device Manager and look under the Multifunctional Adapters tab. You will find the SUNIX card listed there along with the port addresses and IRQ assignments.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(246.4, 90%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EXD%3C/text%3E%3C/svg%3E)
Go to Device Manager and look under the Multifunctional Adapters tab. You will find the SUNIX card listed there along with the port addresses and IRQ assignments. It does work!
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(67.2, 68%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELT%3C/text%3E%3C/svg%3E)
Hello
Thank you for your question and reaching out. I can understand you are having query\issues related to parallel port address in Windows 11.
Please run this WMI command from powershell and see if you can get the port address.
get-wmiobject -class "Win32_ParallelPort" -namespace "root\CIMV2"
--If the reply is helpful, please Upvote and Accept as answer--
Hello,
Thank you for your answer. I tried but I received no feedback, see the screenshot.
I also post the property window of the port to illustrate what I said in my initial message. Is it possible that your command would work with another path or class derived from these details?
Thanks!!!
Marco
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What I have found to be the case is that the SUNIX brand of parallel port cards do not display the ports resources (probably due to how they wrote the driver). This happens under both Windows10 and Window11. Simply changing the brand of parallel port card fixes the problem.
If you have software such as Presentation that uses the logical port address such as LPT1, the SUNIX card should work. However, if you need access to the physical base address and control registers, such as if you are writing a MATLAB script, you will run into this issue and I would suggest using a different brand of parallel port card, such as RoseWill or StarTech.
