For compatibility between product versions, the library OLDNAMES.LIB maps old names to new names. For instance,
open maps to
_open. You must explicitly link with OLDNAMES.LIB only when you compile with the following combinations of command-line options:
/Zl(omit default library name from object file) and
/Ze(the default: use Microsoft extensions)
/NOD(no default-library search), and
For more information about compiler command-line options, see Compiler options.