InstallUrl Property (Launch Conditions)

Specifies a location from which the user can download files if a launch condition evaluates to False. If this property contains a value, a dialog box containing Yes and No buttons is displayed, along with the message specified in the Message property.

If you select Yes, you are redirected to the location specified by the property; in either case, the installation immediately stops.

The settings for the InstallUrl property are as follows:

Setting

Description

(Blank)

The dialog box will not be displayed; the standard Windows Installer termination dialog box will be shown instead.

URL

Uses the format http://server/path/, where server and path define a valid Internet or intranet Web page.

NoteNote
If the URL is not valid, the user does not have a Web connection, or the user does not have a Web browser installed, this will fail.

UNC path

Uses the format \\server\share, where server and share define a valid network file share.

NoteNote
The user must have access permissions for the file share.

File path

The path of the location of the file, relative to the location of the installer, for example, \My Application\MyFile.exe. Primarily used when you are deploying on redistributable media such as a CD-ROM.

Security noteSecurity Note

If the Bootstrapper property for the deployment project is set to Web Bootstrapper, you should only specify a URL. Specifying a UNC path or file path could allow files to be downloaded without any security prompt, creating a security risk for users. For more information, see Build, Configuration Properties, Deployment Project Properties Dialog Box.

The .NET Framework Launch Condition sets the InstallUrl property to .NET Framework 4.0, which redirects to a Microsoft Support Web page that contains a downloadable installer for the .NET Framework. For all other launch conditions, the InstallUrl property is blank by default.

NoteNote

If your application requires a different version of the .NET Framework, you will have to override the InstallUrl property and provide your own location. For more information, see .NET Framework Launch Condition. In addition, if you change the InstallUrl property, you should also change the Message property to a more appropriate message. For more information, see Message Property (Launch Conditions).

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