OST to PST Serial Number is a superior OST conversion Tool to help Outlook user to restore OST data to PST with email, contacts, journals, task, to do list, and other attachments. OST file is not open in Outlook because OST file is Offline Exchange Server file. When the Exchange Server crash due to hardware or software problem, virus attack, and database corruption etc, then OST files store in client system in Exchange Server database, if user want to restore important data then use OST to PST Serial Number software. This function is helpful in a number of OST corruption situation is caused by external reason such as virus infection. Convert OST to PST serial number file has the facility to recover OST components from all kinds of OST file corruption. Performing arts safe and protected OST file Conversion you can Convert OST to PST Serial Number access them. This software runs on all versions of Windows OS such as Win7, vista, server 2003, XP and 2000 and MS Outlook 2010, 2007, 2003, 2002, 2000, 98 and 97. Purchase Online this software only at $99 for personal and $199 for business purpose. Get more info visit:-http://www.filerestoreprogram.com/serial-ost-to-pst-serial-number.html