INT 31 - DPMI 1.0+ - INSTALL RESIDENT HANDLER INIT CALLBACK AX = 0C00h ES:(E)DI -> resident service provider structure (see #03158) Return: CF clear if successful CF set on error AX = error code (8015h,8021h,8025h) (see #03143 at AX=0000h) Note: calling this function declares an intent to provide resident protected mode services after terminating with AX=0C01h SeeAlso: AX=0303h,AX=0C01h