The OLD statement directs the linker to search another DLL for export ordinals. This statement preserves ordinal values used from older versions of a DLL. For more information on ordinals, see the sections below on the EXPORTS and IMPORTS statements.
Exported names in the current DLL that match exported names in the old DLL are assigned ordinal values from the earlier DLL unless
The name in the old module has no ordinal value assigned, or
An ordinal value is explicitly assigned in the current DLL.
Only one DLL can be specified; ordinals can be preserved from only one DLL. The OLD statement has no effect on applications.
Syntax
OLD 'filename'
Remarks
The filename specifies the DLL to be searched. It must be enclosed in single or double quotation marks (' or ").