The following update installation flags are possible (combined as a bitmask):

• 1: Never request OS reboot
• 2: Can request OS reboot
• 4: OS reboot is always required
• 8: Gui is required
• 16: Local admin rights are required
• 32: Can only be installed as a patch for already installed product (not a full distributive)
• 64: Update installation needs current version uninstallation
• 128: Requires license validation
• 256: Brings minor impact to the system
• 512: Exclusive handling is required (cannot be installed together with other updates)
• 1024 Cannot be uninstalled