What is this flow chart about?

Question

Can someone explain this flow chart is about?

Answer 1

It looks like someone is trying to explain how Windows runs an EXE. Since Windows doesn't understand .NET it simply runs the EXE which is a PE file. For non-.NET apps that is it. For .NET apps though the EXE is a stub that starts up the CLR that hosts your app. It looks like this diagram is trying to explain that along with a reference to JIT compilation.

Are you learning .NET? This looks like something someone would use to explain how .NET CLR gets running.

Answer 2

Hi @Arshad Nazeer ,

.NET assemblies are Win32 PE files, the operating system doesn’t distinguish between .NET assemblies and Win32 executable binaries, because they are the same normal PE files, so OS validates the file header to check if it’s a managed assembly or not.
If the file is a .NET assembly, then CLR will load the assembly. For more details you can check : The CLR's Execution Model

Best Regards,
Xingyu Zhao
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