INT 21 P - Phar Lap 386/DOS-Ext VMM v2.2+ - INSTALL PAGE-REPLACEMENT HANDLERS AX = 2524h ??? Return: ??? Note: this function takes three DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. pointers and three DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. pointers to DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. pointers as arguments