Structure of a Library
The latest version of this topic can be found at Structure of a Library.
A library contains COFF objects. Objects in a library contain functions and data that can be referenced externally by other objects in a program. An object in a library is sometimes referred to as a library member.
You can get additional information about the contents of a library by running the DUMPBIN tool with the /LINKERMEMBER option. For more information about this option, see DUMPBIN Reference.