MSFN is made available via donations, subscriptions and advertising revenue. The use of ad-blocking software hurts the site. Please disable ad-blocking software or set an exception for MSFN. ×
Office 2003 has an .ini file that allows you to auto-insert the serial number, thus allowing an unattended install. I don't have the file at my current location, but I think it is called system.ini in the Office 2003 package.