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Titolo
Error installing DSA: Failed to serialize DevExtImpl -
Descrizione
When performing an installation of the Directory Synchronization Agent, the following error is encountered and the installation fails:
Installation failure. Failed to serialize DevExtImpl.Error = 0x00000020
OR
Error = 0x00000005
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Causa
Installing DSA on Windows Server 2012, 2016 and 2019
User Account Control is not fully disabled in the Registry.
Installing DSA on Windows Server 2008 / R2
Microsoft .NET 3.5 Service Pack 1 prerequisite has not been installed prior to the attempt to install the Directory Synchronization Agent.
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Risoluzione
For Windows Server 2012, 2016 and 2019
Disable User Account Control through the Registry by changing the DWORD "EnableLUA" from 1 to 0 and restart the server
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
For Windows Server 2008 / R2
Install Microsoft .NET 3.5 Service Pack 1 and once this has completed, ensure that a restart of the Operating System is performed before attempting to run the Directory Synchronization Agent install again.