who executes code in .net OPERATING SYSTEM or CLR?

Question

i have a great confusion about who executes code in .net.
because i have learnt that code is executed by CLR but a teacher who teaches me .net told
that it is executed by operating system. that's the origin of my confusion.
because according to books it is executed by CLR and according to teacher it is executed by
operating system. i can not make sure who one is true .......
please explain..

Umesh kumar · Answer

CLR convert the Managed Code into native code and then execute the Program . But whenever your are dealing with pointers called unsafe code at this time inn c# operating system is responsible to execute the code.

Vulpes · Answer

Your teacher is correct. A .NET compiler converts the source code to CIL ('common intermediate language') and metadata. A component of the CLR known as the JIT ('just in time compiler') then converts the CIL 'on the fly' to native code for the current platform. However it's the operating system itself which actually runs the native code on the machine's CPU. So the CLR manages the execution of a .NET application dealing with memory management exception handling garbage collection etc. as well as conversion to native code but it doesn't actually run the latter.