EXCEl VBA USB and LAN

Hello,

I have been using EXCEL VBA to communicate and collect data from my test instruments using EXCEl VBA macros on GPIB bus. I have two modules from NI installed in my Excel VBA ( NI-488 DLL entry function declarations and This module contains the variable declarations,
' constant definitions, and type information that
' is recognized by the entire application.). This is working fine.

Now I am connecting many of my new instruments by LAN and USB. I want  to use excel VBA to talk to these instruments on LAN and  USB and collect data. Please help me on this. Is there any  excel vba modules I can download (Similar to GPIB modules I mentioned earlier) from NI  fo this LAN and USB communication?

Appreciate your help.

Thanks,

Leyo Joseph