Microsoft has released an ISO image with the September 2006 security updates

These ISO-9660 CD image files contain the security updates for Windows released on Windows Update on September 12th, 2006. They do not contain security updates for other Microsoft products. These CD images are intended for corporate administrators who manage large multinational organizations, who need to download multiple individual language versions of each security update, and who do not use an automated solution such as WSUS. Use these images to download multiple updates in all languages at the same time.

Caution: Be sure to check the individual security bulletins at http://www.microsoft.com/technet/security prior to deployment of these updates to ensure that the files have not been updated at a later date.

September 2006 Security Releases ISO Image