what are the differences between an executable generated by windows and linux [duplicate]

Answer 1

Here are some of the reasons I can think of off the top of my head:

1. Different container formats (which so far seems to be the leading differentiator in this answer -- however its not the only reason).
2. different dynamic linker semantics.
3. different ABI.
4. different exception handling mechanisms -- windows has SEH -- upon which C++ exception handling is built
5. different system call semantics and different system calls -- hence different low-level libraries.