The two ASSEMBLY executable modules are EXE and DLL.

Exe in simple words means an executable file that is generated when we build an application. The assemblies are directly loaded when we run an Exe. MEANWHILE, an Exe cannot be shared with the other applications. It is a file extension for an executable file format. An executable file can be easily run by a program in Microsoft DOS or Windows through a command or a double click.

DLL stands for Dynamic Link Library. It is a library that has CODES that are hidden. The codes are actually encapsulated inside the library. An Application can consist of n number of DLLs which can be shared with the other applications as well. Other applications that need to share this DLL need not worry about the CODE till the TIME they are able to call the function on this DLL.

DLL files can be used by more than one program at a time. In fact, they can even be used by multiple programs being executed within the same time. DLLs usually come with the Windows operating system while some of them are added when new programs are being installed.