Hello Kurt, should've known that it's a good idea to keep the log with the error. You do have a log? It should name the correct .msi and its path (in my case C:\sec_530\Serverinstaller\) as source (though it's then using a cached copy). Is there anything suspicious before the 2711 error? Haven't checked the 5.4.0 .msi , there's probably no Encryption feature in there. Different path though, so the Installer shouldn't use the wrong one .... I'd try logoff/logon (you've probably done that already), restart the Installer service, reboot the server (if feasible). Christian
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