Lowell (11/29/2011)

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operating system service pack does not enter into the equation.

SQL Server Service pack is the piece to look at.

Windows NT 5.2 (Build 3790: Service Pack 2)

that's the OS of...

Once again I say that the two instances are the same service pack as we see below:

>> Details about the version of SQL Server that the backup originated from msdb:

Microsoft...

Dear,

As I reported at the start of the topic, the two instances (source / target) are x64 and have service pack 2, with that, the only different from yours, is...