What is the difference between .EXE and .DLL files?

EXE

• It is an executable file, which can be run independently.
• EXE is an out-process component, which means that it runs in a separate process.
• It cannot be reused in an application.
• It has a main function.

DLL

• It is Dynamic Link Library that is used as a part of EXE or other DLLs. It cannot be run independently.
• It runs in the application process memory, so it is called as in-process component.
• It can be reused in an application.
• It does not have a main function.