Is binary executable files compiled by OS before loading on to main memory and executing?

Question

i give u a c program eg....we write the program in c editor...thereafter compile it .....Compilation produces executable file.....i m asking if on double clicking the exe file the OS again compiles it to check for errors(u know binary code in exe file can be changed )

or it simply loads it om memory and starts executing it..........

Answer 1

Your question is bit confusing, anyways will try to help. The file is compiled and make it a machine readable format and put into memory.