How to enable 32-bit build on .NET 2010 Express (no option in ComboBox)

See Title. .NET 2010 Express, building a C# Windows Form.

Trying to enable Debug-and-edit, which apparently requires running and building 32-bit applications. See question: "Changes to 64-bit applications are not allowed" when debugging in Visual Studio 2008

Fine. Problem is, my Platform options are limited to (1) "Active (Any C开发者_Python百科PU)" and NOTHING ELSE.

So... Anyone know where THAT setting is hidden?

Open up Build -> Configuration Manager.

The "Active Solution Platform" drop down should have an option for making a new platform.

Or, you can keep the current platform and through project properties -> Build tab select the desired platform target for the current configuration.