For the latest documentation on Visual Studio 2017, see Visual Studio 2017 Documentation.

Tells LINK to create a DLL. At the same time, LINK creates an import library, unless an .exp file is used in the build.

LIBRARY [library][BASE=address]  

The library argument specifies the name of the DLL. You can also use the /OUT linker option to specify the DLL's output name.

The BASE=address argument sets the base address that the operating system uses to load the DLL. This argument overrides the default DLL location of 0x10000000. See the description of the /BASE option for details about base addresses.

Remember to use the /DLL linker option when you build a DLL.

Rules for Module-Definition Statements