Hello, we have à SBS2003 whit office 2003 client on XP Pro SP3 OS. The SBS2003 have crash and the DC is not accessible. We choise solution on a fresh install of SBS2011 whith the same client environnment. How can we transfert the ex OST file of the old session domain for a user to the new OST of the fresh install on the new domain? What is the best way. There is à tools in exchange 2K10? There third party tools that you have tested?