What is MSIL (Microsoft Intermediate Language Code)

• When the .net program is compiled, the output of the compiler is not an executable file but a file that contains a special type of code called MSIL now called CIL.
• The compiler translates the source code into MSIL which is a CPU-Independent set of instructions that can be effectively converted to native code.
• Before code can be run, MSIL must be converted to CPU-specific code, by JIT compiler.