.NET OperatingSystem class behavior in virtual machine

Question

I use OperatingSystem.IsWindows() method. However, I'm not sure about the behavior when the application is running on a virtual machine. Does it use virtual machine's operating system, or PC's operating system?

Answer 1

It actually doesn't even check anything at runtime. It just returns true or false depending on the target of the .NET CLR that the application is using.

From the source code:

[NonVersionable]
public static bool IsWindows() =>
    #if TARGET_WINDOWS
        true;
    #else
        false;
    #endif