Upon the startup of DevStudio and AdminStudio, we do attempt to check the Update Service for critical updates to the software. You can however disable this if it suits your needs. I recommend you turn it back on every 15 days to let it check for updates, but you can do this at your discression. If you want to turn off the Update Service for an application, please see the following link for the utility that will allow you to do this.
http://consumer.installshield.com/kb.asp?id=q110838Hope this helps.
Mark D.
Developer Support Engineer
InstallShield Technical Support