Why OST Files are Inaccessible? - Version 3.3 Why OST Files are Inaccessible? An OST files does not open in MS Outlook that means, OST files corrupt. Due to many reason, OST files corrupt like: * Bad Sector. * Hardware and Software Malfunction. * Corruption of Exchange Server OST files. * OST file cannot synchronize with Exchange Server. * Upgrading old server to new sever and other. OST files inaccessible due to all upper reason, you want to archive emails from OST files then use OST Recovery software to save deleted emails from Exchange Server Offline Storage database folder. The OST to PST Conversion salutation runs on all versions (Win 95, 98, 2000, XP, 2003, ME, Vista, and Win7) of Windows OS and supports all editions (2010, 2007, 2003, 2002, 2000, 98 and 97) of MS Outlook. This software provides free demo version before purchasing when you satisfied this software recovery process then purchase full version just at $99. Get information about software visit-: http://www.ostfile.co.uk/