create dll file in c# [closed]

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How can I create a dll file in C#?

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File menu -> New Project -> choose your Programing language (Visual C#/VB etc.) -> Windows -> Class Library.

After the project has been created, make use of Build menu -> Build Solution (or Build [Project Name]) to compile the project.

You may find out the dll in the folder: project folder\bin\debug(or release)

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Assuming you are using Visual Studio as your IDE:

1. Create a new Class Library Project (File => New Project => Class Library)
2. Right click new project, select "Build"

DLL file will be found in a sub-folder of the new project (likely \bin\Debug)