Affected Products:
- all RayPack Studio products
- RayFlow
- all .NET products
Description:
When starting a RayPack Studio product on a Windows 10 Sandbox the runtime reports the following error:
This application requires one of the following versions of the .NET Framework: NETFramework Version=v4.5.2
But the reported version cannot be installed because the installer detects, that the version is already available. As a result it is not possible to run any product. This problem is not limited to Raynet products but also affects other .NET applications (including for example the powershell.exe console).
Solution:
This problem is caused by the KB4495620 update which is installed on most host machines. This is a cumulative update for the .NET Framework fixing a few vulnerabilities (see https://support.microsoft.com/en-us/help/4495620/may-14-2019-kb4495620-cumulative-update-for-net-framework for more information).
In order to be able to run .NET applications on a Windows 10 Sandbox, uninstall this update and reboot the machine. Afterwards, powershell.exe and .NET applications will run without issues.
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