Some questions on SmartDDE and Windows XP

[SmartDDE]

I have three Brooks Emerson mass flow controllers, but I can't control them
using some Excel macros and the SmartDDE because Windows XP doesn't
recognize the controllers by the COM port.
How can I solve this problem?
I also need the help file that comes with SmartDDE (when I installed the
program no help file was created). Where can I find it?
Where can I find the document regarding the HART protocol-based commands,
Brooks part no. 541-C-053-AAA?
Thanks in advance.

[Charlie S.]

Hi SmartDDE,

I am unfamiliar with the instruments you are attempting to communicate with, but I found a good post about it here:

http://forums.ni.com/ni/board/message?board.id=170&message.id=76346&requireLogin=False

Hope this helps!