The Delay MSI Engine Reboot property specifies whether you want to postpone any reboot associated with installing or updating the Windows Installer engine on the target system until after your installation has completed.

Select Yes to postpone the reboot, if one is necessary. Select No to allow the system to reboot, if necessary, immediately after the Windows Installer engine has been installed or updated and before performing your installation.

This option requires Windows Installer version 2.0.