Topic Last Modified: 2009-05-18

Microsoft Exchange Server 2007 Setup cannot continue because Microsoft Windows Installer 4.5 is not installed on this server. Exchange Server 2007 Service Pack 2 (SP2) Setup requires that Windows Installer 4.5 be installed.

To resolve this issue, download and install the Windows Installer 4.5 Redistributable package, and then run the Exchange 2007 SP2 Setup program.

To download Windows Installer 4.5, see Windows Installer 4.5 Redistributable.

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