VBR 12.1.1.56 ISO Includes Older Versions of Explorers, Causing Errors

[t7MevELx0]

I've been troubleshooting a problem with the Exchange Explorers included in VBR 12.1.1.56. I discovered that the latest ISO for VBR 12.1.1.56 does not have the most recent versions of the Explorers.

When I install VBR 12.1.1.56, the Exchange Explorer version is 12.1.1.56/1300. However, if I mount the ISO for Veeam Backup for Microsoft 365 and install the latest patch for the Exchange Explorer from the "Patches" directory, the version updates to 12.1.1.56/1502.

The older version fails to export a mailbox to a PST file due to an "invalid serialized stream; opcode 4" error, which is resolved in the newer version of the Exchange Explorer.

I've informed our Veeam account team about this issue, and they've assured me they will log it internally. I'm also posting it here in case others are experiencing similar problems with the Veeam Explorers.

[Mildur]

Hi t7MevELx0

We will have a newer version of the ISO next month if everything goes as planned (with our upcoming patch). I assume the new explorers will be on that ISO as well. Let me check to be sure.

Best,
Fabian