# Preparing the MediaAgent

If you want to recover a mailbox or mailbox items (such as a folder, a public folder, a contact, or a calendar entry) from Exchange database backup jobs, then verify that the MediaAgent has the required software.

The MediaAgent must have the following software:

- The Exchange package (the package can be installed in restore-only mode)

- Microsoft Classic Outlook (64-bit) all versions for PST restores.

- Microsoft .NET Framework 4.6.2.

- Visual C++ Redistributable for Visual Studio 2012 Update 4.

Important

The Visual C++ Redistributable for Visual Studio 2012 is a required prerequisite for Exchange 2016, Exchange 2019, and Exchange Server Subscription Edition (SE). Although newer redistributable versions are available, Visual Studio 2012 Update 4 is specifically required by Microsoft to ensure that ESEUTIL (Extensible Storage Engine Utility) functions correctly. For details, see the Microsoft documentation:
- Exchange Server 2016 prerequisites
- Exchange Server 2019 and SE prerequisites

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