Exchange OST to PST Recovery - Version 3.3 Exchange OST File Recovery, first of all repair OST file because Exchange Server downtime error generate in OST file after that convert OST file to PST, EML and MSG file. The OST File Recovery Software runs on all Windows OS Version like Windows 7/Windows Vista / 2003 / 2000 / XP. For the assessment you can go for Demo Version of Exchange OST to PST Recover Tool which will help you to preview your OST data in PST format. Copy of emails retain in OST file on Exchange Server when by chance emails becomes delete from account that time Outlook user restore email by Exchange Server OST File Recovery Software. You have to purchase the Full Version of Exchange OST to PST Recovery Tool $99. This software supports all operating systems such as 98, 2000, 2003, XP, Vista and Win 7 and Microsoft exchange server 5.5, 5.0, 2003 ,2000 etc. http://www.exchangeosttopstrecovery.exchangeostrecovery.org/