Adding custom control to Visual Studio toolbox?

How can I add my custom开发者_运维知识库 WinForm button to the Toolbox in Visual Studio? I'm using Visual Studio 2008.

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Assuming WinForms,

right-click on the Toolbox and select "Choose items". Click the Browse button and select the DLL with your button.

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Right mouse click it, click "Choose Items...". When this has loaded, click Browse. Locate your DLL/EXE and click Open. It should then appear in the listbox. Select it (if not selected already) and click OK.