OST to PST Conversion software to convert MS Exchange Server .OST file to MS Outlook .PST file. Software successfully converts every item of .OST file to .PST file: emails, attachments, images, email properties, sent items, journals, address book, drafts, folder with sub-folders. It also recovers permanently deleted emails from the "Deleted Items" folder thus also works as an ost recovery software to recover deleted emails. Software allows saving the converted emails in .PST, .EML and .MSG file formats which are easy to access with MS Outlook and Outlook Express. Supported versions of MS Exchange are 5.0, 5.5, 2000 and 2003 and of MS Outlook includes 97, 98, 2000, 2003 and 2007 and Outlook Express supported include 4.0, 5.0, 5.5 and 6.0. Software is a 3 step solution for ost to pst conversion process.