MS Exchange Server-
2010, 2007, 2003, 2000, 5.5 and 5.0
2013 (both 32 bit and 64 bit),2010, 2007, 2003, 2002, 2000, 98 and 97
MS Outlook Express-
6.0, 5.5, 5.0 and 4.0
Network administrators, helpdesk technicians as well as computer users often face a critical situation when they need to open an OST file. Due to certain security reasons, OST files are inaccessible and therefore even if you want to check whether something is available in OST file or not; you are unable to do so. Unfortunately, Microsoft too does not offer any such tool using which the OST file can be opened without making a connection with MS Exchange Server.
Free OST Viewer - It is a standalone or independent and Free OST explorer tool that lets you open OST file and resolves the problems that administrators go through. Using this OST explorer tool, you can open OST file without actually establishing any connection with MS Exchange Server. OST Viewer- an efficient OST explorer tool lets you scan the OST file quickly and displays its emails, notes, contacts, calendar items etc in respective folders.
Using this OST explorer tool is very easy; it offers you step-by-step commands to open OST file. Now when you launch this OST explorer tool, the "Select Source OST File" dialog box appears and prompts you to browse the OST file for which you want to see the folder structure.
As soon as you select the OST file and click the OK button, Free OST Explorer tool starts scanning the selected file. After completing the scanning process, OST Explorer displays the email items in same tree-like structure in the left pane as it is originally in the OST file. You can navigate through the folders listed in the left pane to view the required emails, contacts, calendar items etc.
Although, it allows you to check the emails in the tree-like structure, but OST Viewer does not allow you to convert OST to PST and therefore doesn't allows you to save the recovered email items. In case you wish to convert OST to PST, you can use OST to PST conversion software which allows you to successfully convert OST into PST.
Free OST Explorer Tool supports exploring OST files from all versions of MS Outlook, such as MS Outlook 97, Outlook 2000, Outlook XP, Outlook 2003, Outlook 2007, and Outlook 2010, MS Outlook Express 4.0 and above, and MS Exchange Server 5.0, 5.5, 2000, 2003, 2007, and 2010. The software can be installed on Windows 2000, Windows XP, Windows 2003, Windows Vista, Windows 7 and 8(32bit/ 64bit) and Windows Server 2012, 2008 R2,2008, 2003(32bit/ 64bit) operating systems to open OST file.