I have a network packet capture program that leverages Network Monitor Driver
(NPP) API to capture network traffics similar to WinPCAP. On Windows Vista, I
can't seems to locate the corresponding libraries such as NPPTools.dll and
NDISNPP.dll. Searched Platform SDK and Driver SDK but found none as well. I
understand other programs that use the similar services work on Vista. Copied
the XP version to Vista but resulted in 3021 return code (invalid dll). Is
there anyone has the experience of getting Network Monitor Driver / NPP to
work on Vista? Thank you.
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DTY

A bit late but I found following solution:
1. Install the WindowsXP-KB838079-SupportTools-ENU.exe on any WinXP
2. Find all dll's you need and copy to WinVista
3. I have still problem with "Network Monitor Driver" when I'm using the netcap.exe

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