Windows Server 2022 version 21H2 (OS Build 20348.587) cannot start RDM
Windows Server 2022 version 21H2 (OS Build 20348.587) cannot start RDM
Dear all,
I am receiving following error in Windows Event Viewer and RDM is not started at all on Windows Server 2022 version 21H2 (OS Build 20348.587) virtual machine:
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Faulting application name: RemoteDesktopManager.exe, version: 2025.3.30.0, time stamp: 0x69340000
Faulting module name: coreclr.dll, version: 9.0.1326.6317, time stamp: 0x6966b119
Exception code: 0xc0000602
Fault offset: 0x00000000003214a1
Faulting process id: 0x1e28
Faulting application start time: 0x01dc9cf0b3dc36d4
Faulting application path: C:\Program Files\Devolutions\Remote Desktop Manager\RemoteDesktopManager.exe
Faulting module path: C:\Program Files\dotnet\shared\Microsoft.NETCore.App\9.0.13\coreclr.dll
Report Id: 5ba9a654-3663-4a6c-8448-78d14f797471
Faulting package full name:
Faulting package-relative application ID:
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Installed latest revision RemoteDesktopManager.2025.3.30.0.
i think all required software is also updated
C:\Program Files\Devolutions\Remote Desktop Manager>dotnet --list-runtimes
Microsoft.NETCore.App 9.0.13 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 9.0.13 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
C:\Program Files\Devolutions\Remote Desktop Manager>ver
Microsoft Windows [Version 10.0.20348.587]
No firewalls, no AV software is enabled!
I will appreciate any suggestions... thanks Team.
All Comments (8)
Hello
I'm afraid your Windows version is too old. I believe you need at least 23H2.
While it's true that .NET 9 will install and run on older systems; it by default enables new security features that are only compatible with the newer OS versions.
Please, let me know I something isn't clear or you have further questions
Kind regards,
Richard Markievicz
Thank you Richard,
For the prompt reply.
I will try it and let you now the result.
Regards,
Emil Pavlov
Hi Richard,
By the way which is the latest RDM (from the previous available versions - https://devolutions.net/remote-desktop-manager/download/previous-versions/ ) that I can install on that OS version.
Not so easy to update it so quickly.
Thanks in advance.
Emil
Hello,
I would recommend starting with version 2024.1 and evaluating how it performs. If everything works as expected, you can then proceed with upgrading to 2024.2, and so on.
Regards,
Min
Hello
Further to what was suggested above, this was a .NET 9 change so you should be good on the last version which supported .NET 8. I'd recommend starting with 2024.3.31 - you'll also need the .NET 8 Windows Desktop Runtime installed.
Thanks and kind regards,
Richard Markievicz
Team,
I have installed successfully suggested version 2024.3.31 + .NET8.
Working perfectly! Once again thanks for the support.
We will think of upgrading to new Windows Server OS, so we can follow your latest releases.
Best Regards,
Emil Pavlov
Hello
Good news, thanks for the follow up. RDM in the 2025.x releases is built on .NET 9, which enables new security features by default and limits support for older Windows versions. It would have been a headache for us to workaround this and at the cost of security, so it's not something we did. For you information RDM 2026.1 will be released next month, which is built on .NET 10 but I don't believe the system requirements change again.
Please let me know fi you have any other questions or comments, but for now I'll mark this thread as "resolved".
Kind regards,
Richard Markievicz
Yes, Richard, you can close the topic as resolved. Thanks again for the support! ;)