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Windows File Explorer does not preview .msg file in Preview Pane when Outlook is not installed or when you have the 64-bit version of Microsoft Outlook installed. In this situation, you receive the following error message:
After you select OK, the following error message is displayed in the Preview Pane:
The Windows preview host requires a 32-bit application previewer. When 32-bit Outlook is installed, it acts as the previewer. Without 32-bit Outlook installed, there is no previewer available for .msg files.
If you prefer to preview .msg files in Windows File Explorer, install the 32-bit version of Outlook instead of the 64-bit version.
MSG Viewer can be used as a portable application or installed as a Windows application. The software doesn't require Microsoft Outlook to be installed on the PC.
Based on your preference, use Instant Search or Advanced Search with various search keywords to narrow your search criteria for better searches in .msg files.
The MSG Viewer can be set as the default application for .msg and .eml files to open, read and search for e-mail files on your hard drive, network share or USB drive.
MSG EML Viewer is the standalone viewer for .msg and .eml files. Support for files from Microsoft Outlook, Mozilla Thunderbird, Gmail, Apple Mail, Windows Mail and etc.