INT 21 - OS/2 v1.1+ Compatibility Box Family API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. - DosQPathInfo AX = 5702h BX = FFFFh CX = size of buffer for information DX = level of information (0002h) DS:SI -> filename ES:DI -> buffer for FAPI path information (see #01678) Return: CF clear if successful AL = 00h CF set on error AX = error code SeeAlso: AX=5702h"OS/2",AX=5703h/BX=FFFFh Format of FAPI path information: Offset Size Description (Table 01678) 00h 22 BYTEs ??? 16h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. extended attribute size (none present if less than 5)