DO NOT sign up thinking this site is trying to be useful! The file format of the "list" needs proprietary software installed that when used to open the list (surprise!) tell you it needs to be licensed (i.e. "purchased") RIP OFF!
This is actually not true at all. Any one can contribute to an update list. rename any ulz file to zip and you can extract the compressed ul file. This can then be renamed to .xml and edited. Once edited you can then rename the xml to ul and then zip the file and rename the zip to ulz. The windows update downloader available at http://www.windowsupdatesdownloader.com/ProgramFiles.aspx can use these files with out any kind of license
Post-SP1 Updates for Office 2013 (Updated 13 NOV 2015)
in User Contributed Update Lists
Posted
This is actually not true at all. Any one can contribute to an update list. rename any ulz file to zip and you can extract the compressed ul file. This can then be renamed to .xml and edited. Once edited you can then rename the xml to ul and then zip the file and rename the zip to ulz. The windows update downloader available at http://www.windowsupdatesdownloader.com/ProgramFiles.aspx can use these files with out any kind of license