<vstoRuntime> element (Office development in Visual Studio)
Applies to: 
Visual Studio 
Visual 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
The vstoRuntime element of the vstav3 namespace contains a supported version of the Visual Studio Tools for Office runtime for a specific Office solution.
Syntax
<vstoRuntime
release
version
supportUrl />
Elements and attributes
The vstoRuntime element is required and is in the vstav3 namespace. If an Office solution supports two versions of the Visual Studio Tools for Office runtime, there are two vstoRuntime elements in the application manifest.
The vstoRuntime element has the following attributes.
| Attribute | Description |
|---|---|
release |
Required. The release version of the Visual Studio Tools for Office runtime. |
version |
Required. Version number of the Visual Studio Tools for Office runtime. |
supportUrl |
Optional. Link to the installation location of the Visual Studio Tools for Office runtime. |
vstoRuntime has no elements.
Example
The following code example illustrates the vstoRuntime element in an application manifest for an Office solution deployed by using ClickOnce. This code example is part of a larger example provided in Application manifests for Office solutions.
<vstav3:vstoRuntime
release="VSTOR40Beta1"
version="10.0.20303"
supportUrl="http://www.microsoft.com" />