hello to everybody,
I'm working on a very old 16 bit app (visualc++ 1.51) that reads and writes a smart card trought a comm device. It implements
some functions using the wm_commnotify windows 3.1 message send by the port.
This is my problem: the app works fine on W95 but not so well on WNT and W2000. The problem basically is that (on w2000) there is not a wm_commnotify by the port, also if the port correctly answers to the appl questions.
Is there someone that could tell me the reason of the different messages behaviour between w95 and Wnt/2000 ?

Off the top of my head one of the reasons is that 2K/NT/XP are 32bit operating systems. 95 is a hybrid of 16 and 32bit.