Our product utilizes (the wonderful) Winpcap to capture ip packets from all devices with an IP address and analyze them in real time. Unfortunately, we discovered that it does NOT capture any packets on dialup (e.g. PPP) connections on Windows 7, and that there are no near-term plans for enabling this (1).

So we need something else. Microsoft Network Monitor and Windows Packet Filter are two options that surfaced during a bit of googling, but before delving into research I wanted to ask the experienced: what are out options, given the following requirements:

• Capture all in/outbound IP packets on the machine.
• Complete background processing - no UI should be involved.
• Support Windows Vista / 7.
• Performance (user should not feel the difference).

Thanks in advance.