EXE

1. It is an executable file,which can be run independently.
2. EXE is an out-processcomponent, which means that it runs in a separate process.
3. It cannot be reused in anapplication.
4. It has a main function.

DLL

1. It is Dynamic LinkLibrary that is used as a part of EXE or other DLLs. It cannot be runindependently.
2. It runs in the applicationprocess memory, so it is called as in-process component.
3. It can be reused in anapplication.
4. It does not have a mainfunction.