Specifying the Required Execution Level for Your Setup Launcher on Windows Vista and Later

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Summary

Specifying the Required Execution Level for Your Setup Launcher on Windows Vista

Synopsis

Installshield lets you specify the minimum execution level required by your installation's
Setup.exe file for running the installation (the setup launcher, any setup prerequisites, and
the .msi file) on Windows Vista and later platforms. You can configure this for each individual release
in your project.

Discussion

To specify the required execution level for a release:

1. In the View List under Media, click Releases.
2. In the Releases explorer, click the release that you would like to configure.
3. Set the Required Execution Level to the appropriate setting.

The available options are:

Administrator?Setup.exe runs only for administrators.
Highest available?Setup.exe runs with the highest privileges that the current user can obtain.
Invoker?Setup.exe runs with the least privileges. This is the default option.

If the Setup Launcher setting is set to Yes, Installshield embeds a Windows
application manifest in the Setup.exe launcher. This manifest specifies the selected
execution level. Operating systems earlier than Windows Vista ignore the required execution
level.

If the Setup Launcher setting is set to No, Installshield does not embed the Windows
application manifest in the Setup.exe launcher.

The benefit of elevating the required execution level is that privileges can be elevated only
once if necessary to run Setup.exe, and that these privileges can be carried over to all of
the installation's prerequisites and the .msi file without requiring multiple prompts for
approval. Thus, if two of your prerequisites require administrative privileges, for example,
you can change this setting to Administrator, and then end users are prompted only once
during the installation, before Windows Installer runs the Setup.exe file.

Note:
If you elevate the privileges and also launch the application at the end of the
installation, the elevated privileges are carried over to the application. In most cases,
running an application with elevated privileges on Windows platforms is discouraged.

Note that an end user's installation experience is more secure when installations are run
with only the permissions that they need. Unless an application is designed to be run only
by system administrators, it should be run with the least privilege.

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Case id: 00001065