![]() If rollup is installed through Microsoft Update, the installation might error with error code 80070643.We have seen Exchange update rollups not installing with the following symptoms: If you install Windows Management Framework 3.0 on a server running Exchange 2007 or Exchange 2010, you will encounter problems, such as Exchange update rollups that will not install, or the Exchange Management Shell may not run properly. Windows Management Framework 3.0 (specifically PowerShell 3.0) is not yet supported on any version of Exchange except Exchange Server 2013, which requires it. Windows Management Framework 3.0 is being distributed as KB2506146 and KB2506143 (which one is offered depends on which server version you are running - Windows Server 2008 SP2 or Windows Server 2008 R2 SP1). The key bit here is that the Windows Management Framework 3.0 includes PowerShell 3.0. This includes all forms of update distribution, such as Microsoft Update, WSUS, System Center Configuration Manager and other mechanisms. Recently, Windows Update began offering the Windows Management Framework 3.0 as an Optional update. Note that Exchange 2010 will only use PowerShell 2.0 so PowerShell 2.0 is still a required component. Update 9/19/13: A side-by-side coexistence of PowerShell 3.0 and PowerShell 2.0 is supported starting with Exchange 2010 SP3.
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