This forum has some tutorial about creating your own update?
You just insert the direct download link into the appropriate text file for your OS (in the ./static subdirectory). Additionally, insert the KB number of your update into the correcsponding file in the ./client/static directory to have it installed.
Example: If the target OS is English 32bit XP the download link would go to
./static/StaticDownloadLinks-wxp-x86-enu.txtand the KB number for installation into
./client/static/StaticUpdateIds-wxp-x86.txtHow to detect the links on windows update?
Visit the support page for the update and grab the direct download link from the MS Download Center.
Is there any update available for the future Windows 8?
Today I got the first, KB2751352, rated as important. Doesn't seem to be security critical, so from a WSUSOU point of view there aren't any Windows 8 security updates, yet.