Behavior Tab

The Behavior tab of the Setup Prerequisite Editor is where you specify what should occur in certain scenarios.

Settings on the Behavior Tab
Setting	Description
The prerequisite requires administrative privileges	Select this check box if administrative privileges are required to install the prerequisite or if the prerequisite must be installed per machine. This check box is selected by default. Prerequisites that require administrative privileges may require that end users provide credentials or consent before installation can occur on Windows Vista systems. For more information, see Minimizing the Number of User Account Control Prompts During Installation.
The prerequisite may be optionally skipped by the user	If the installation should display a message box that enables end users to choose whether to install the prerequisite, select this check box. If end users should not be able to choose whether to install the prerequisite, clear this check box.
If, after installing the prerequisite, the conditions still indicate it is required	If the conditions still indicate that the setup prerequisite needs to be installed after the prerequisite installation has been run, either of the following may be true: The prerequisite was not successfully installed. The conditions that were specified for the prerequisite were not accurate. For example, a condition may indicate that the prerequisite needs to be installed if a particular file does not exist on the target machine. If the file is still missing even after the prerequisite is installed, it is possible that that the condition should not have been created. Specify the behavior that should occur if the conditions still indicate that the prerequisite needs to be installed. The available options are: Abort the setup—If your application should not be installed, select this option. Ask whether to continue the setup—If the installation should display a message box that prompts the end user to specify whether the installation should continue, select this option. Continue the setup—If the installation should essentially ignore the prerequisite's unmet condition and proceed to the next prerequisite installation (if one is required) or the main installation, select this option.
If the prerequisite requires a reboot	Installing a setup prerequisite may require that the target machine be restarted, as described in Restarting a Target Machine for Prerequisite Installations. Specify the behavior that should occur if the prerequisite requires that a target machine be restarted. Exit and resume on reboot—To end the prerequisite installation, allow the setup prerequisite to restart the target machine, and then continue the installation, select this option. Ignore it, and fail to resume if machine is rebooted—To continue the installation but end it if the target machine is restarted, select this option. Thus, if it appears that a restart is required but you want to try to skip it, select this option. Prompt the user only if no reboot is detected, but always reboot the machine and resume on reboot—To prompt the end user to restart the target machine only if it appears that the target machine does not need to be restarted, select this option. The target machine is restarted if the end user agrees to allow it, and then the installation continues. Prompt the user to reboot the machine even if nothing is detected, and resume on reboot—To prompt the end user to restart the target machine even if it appears that the target machine does not need to be restarted, select this option. The target machine is restarted if the end user agrees to allow it, and then the installation continues. Reboot the machine and resume on reboot—To restart the target machine and then continue the installation, select this option.