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ClickOnce deployment on Windows Vista

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Applies to: yesVisual Studio noVisual Studio for Mac

Note

This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here

Building applications in Visual Studio for User Account Control (UAC) on Windows Vista normally generates an embedded manifest, encoded as binary XML data in the application's executable file. ClickOnce and Registration-Free COM applications require an external manifest, so Visual Studio generates a file for these projects containing the UAC data instead of an embedded manifest. For ClickOnce and Registration-Free COM deployments, Visual Studio uses information from a file called app.manifest to generate external UAC manifest information. For all other cases, Visual Studio embeds the UAC data in the application's executable file.

Visual Studio provides the following options for manifest generation:

  • Use an embedded manifest. Embed UAC data in the application's executable file and run as a normal user.

    This is the default setting (unless you use ClickOnce). This setting supports the usual manner in which Visual Studio operates on Windows Vista, with the generation of both an internal and an external manifest using AsInvoker.

  • Use an external manifest. Generate an external manifest by using app.manifest.

    This generates only the external manifest by using the information in app.manifest. When you publish an application by using ClickOnce or Registration-Free COM, Visual Studio adds app.manifest to the project and then adds this option.

  • Use no manifest. Create the application without a manifest.

    This approach is also known as virtualization. Use this option for compatibility with existing applications from earlier versions of Visual Studio.

    The new properties are available on the Application page of the Project Designer (for Visual C# projects only) and in the MSBuild project file format.

    The method for configuring UAC manifest generation in the Visual Studio IDE differs depending on the project type (Visual C# or Visual Basic).

See also