The nasty OSD App Tree bug has been squashed and version 2.5.1 is ready: http://myitforum.com/cs2/blogs/jsandys/pages/osdapptree.aspx.
It has been brought to my attention that a nasty bug slipped by my rigorous QA process that pretty mush kills OSD App Tree 2.5. I will be sorting this out post-haste and posting an update ASAP.
Holy cow batman! The title says it all and is the conclusion of one Mark Russinovich – Windows Guru Guru Extraordinaire.
Check out his blog post: The Machine SID Duplication Myth.