All,

Ran into an interesting error during a hotfix installation.  Here is the write up that I did on it.

FIM 2010 Hotfix Installation - Error 25070 These workstations have sessions with open files on this server: http://social.technet.microsoft.com/wiki/contents/articles/7214.fim-2010-hotfix-installation-error-25070-these-workstations-have-sessions-with-open-files-on-this-server.aspx