Question

How does CLR recognizes managed code from unmanaged code?

Thanks

SNA

Answer 1

There are flags in the PE that indicate managed code.

Microsoft’s .NET Framework has
extended the PE format with features
which support the Common Language
Runtime. Among the additions are a CLR
Header and CLR Data section. Upon
loading a binary, the OS loader yields
execution to the CLR via a reference
in the PE/COFF IMPORT table. The CLR
then loads the CLR Header and Data
sections.