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Asked: 2026-06-13T12:05:06+00:00

I’m working on a program that is autostarting with windows. The program is a

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I’m working on a program that is autostarting with windows. The program is a windows-forms application written in C#. When it gets started, it automatically hides itself and shows a tray icon. So it’s only visible in tray, not in taskbar, not as a window.

Now I want somehow to send an ID (a simple int number) to the running windows form and the form should automatically show a messagebox with the recieved number.

Sending should be directly, not over a database or a textfile that is watched.

Is there a way to send data to a open windows form?

Any help apreciated 🙂

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1 Answer

  1. Editorial Team

    How about named pipes?

    They are persistent, and easily accessible.
    Here’s a blog post detailing both the 2.0 and 3.5 implementations:
    http://www.switchonthecode.com/tutorials/dotnet-35-adds-named-pipes-support

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