EXE files are single outbound files that cannot be shared with other applications. DLL files are multiple inbound files that are shareable.
In the context of .NET development, the primary difference between a DLL (Dynamic Link Library) and an EXE (Executable File) lies in their purpose and usage:
- DLL (Dynamic Link Library):
- A DLL is a library that contains code and data that can be used by more than one program at the same time.
- It allows for modular programming by enabling multiple programs to share the same functionality without the need for duplication.
- DLLs are typically used for storing functions that can be shared across different applications, such as utility functions, database access functions, or custom controls.
- DLLs are not directly executable; they need to be invoked by another executable, such as an EXE file.
- EXE (Executable File):
- An EXE file is a standalone program that can be executed independently.
- It contains the code, data, and resources necessary to perform a specific task or application.
- When you run an EXE file, it typically starts a process that carries out the instructions within the file.
- EXE files are meant to be directly executed by the operating system or the user.
In summary, while both DLLs and EXEs contain code and data, DLLs are primarily used for sharing code among multiple applications, while EXEs are standalone programs meant to be executed directly.