Standard modules

Standard modules (.BAS file name extension) are containers for procedures and declarations commonly accessed by other modules within the application. They can contain global (available to the whole application) or module-level declarations of variables, constants, types, external procedures, and global procedures. The code that you write in a standard module isn't necessarily tied to a particular application; if you're careful not to reference forms or controls by name, a standard module can be reused in many different applications.

---

A module containing only procedure, type, and data declarations and definitions. Module-level declarations and definitions in a standard module are Public by default. A standard module is referred to as a code module in earlier versions of Visual Basic.