AMAZING I have the MS Office 2007 Enterprise Edition created by ZWITSO. Today I needed to repair my office installation and had to have access to the DVD for that. I put the DVD in my drive and...... SURPRISE, the DVD couldn't be read. I mean NADA NOTHING. No sound as if the DVD was scratched or broken, unreadable. As soon I uninstalled KB949810 the dvd came to life. So it seems that MS has gone to that extent of blocking access to all the custom made/not genuine MS Office editions cd/dvds. The difference between the genuine dvd and zwitso is that the latter has some extra folders in the dvd root. MICROSOFT HAS GONE THAT FAR!!! SHAME ON YOU MICROSOFT!