| Open OST File in Outlook | Softaken Free OST Viewer | OST Viewer | Open OST File in PST Outlook | |
| 2.5 | 1.0 | 18.0 | 8.0 | |
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| Shareware | Freeware | Freeware | Shareware | Licence |
| $32.00 | FREE | FREE | $49.00 | Price |
| 4.54 MB | 1.99 MB | 8.84 MB | 35.40 MB | File size |
| May 18, 2019 | Mar 25, 2016 | Mar 22, 2018 | Jun 28, 2019 | Update |
| 21 | 18 | 22 | 25 | Downloads |
| Windows 10 x32, Windows 10 x64, Windows 8 x32, Windows 8 x64, Windows 7 x32, Windows 7 x64, Windows Vista, Windows XP, Windows Server, Windows Home Server, Other | Win2000, Windows 7 x32, Windows 7 x 64, Win Server, Win Vista, Win Vista x64, Win XP and Win8 | Win2000, Windows XP, Windows 7 x32, Windows 7 x64, Windows 8, Windows 10, WinServer, WinOther, Windows Vista, Windows Vista x64 | Win2000, Windows 7 x32, Windows 7 x64, WinMobile, WinServer, Windows Vista, Windows Vista x64, Windows XP, Other | OS |
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