Fallback handler could not load library, DllNotFoundException

Unity Engine
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1

What could cause dlls to not be loaded properly at runtime on Windows?
Works fine on many PCs but on others I see errors in the log file and the native dll code fails to be run.
The log says: “Fallback handler could not load library”
and it gives a path to appname_Data/Mono/ which does not even exist since they are in Plugins folder

Then on trying to call native code in the dll a DllNotFoundException occurs
But only on some PCs - a relevant dll missing?

2

Well this seems related to Visual Studio runtime dependencies and if they have been installed before.
Not familiar with that setup or if the dependency can be removed