Published on: February 8, 2022 
Microsoft says it has fixed an issue caused by last month’s Windows updates that would cause apps using Microsoft.NET to experience problems, close, or throw errors when acquiring or setting Active Directory Forest Trust Information.
This issue primarily impacts Windows Server platforms, including Windows Server 2022, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, and Windows Server 2012.
“After installing updates released January 11, 2022 or later, apps using Microsoft .NET Framework to acquire or set Active Directory Forest Trust Information might fail, close, or you might receive an error from the app or Windows,” Microsoft explained in an update on Friday to the Windows health dashboard.
“You might also receive an access violation (0xc0000005) error. Affected apps use the System.DirectoryServices API.”
Microsoft says it has resolved the issue through .NET Framework out of band (OOB) updates available for systems running Windows Server 2022, Windows Server 2019, and Windows Server 2016.
The OOB updates are not delivered and installed automatically through Windows Updates, so admins will instead have to search for and install them through the Microsoft Update Catalog.
They can also manually import them into Windows Server Update Services (WSUS) and Microsoft Endpoint Configuration Manager.
Microsoft says it’s working on releasing solutions for impacted Windows or .NET Framework versions in the next few days.
Last month, Microsoft released another series of OOB updates to address multiple issues caused by the January 2022 Patch Tuesday updates.
The issues fixed in those emergency updates involved Windows Server Domain Controllers restarting, VPN connectivity, Virtual Machines failing to start, and ReFS-formatted removable media mount failures.
