WMI kan lösa de här sakerna, men jag lovar inte att det är enkelt.
MSDN skrev:
The Win32_PerfRawData_Tcpip_NetworkInterfaceraw data performance counter class represents raw data counters that measure the rates at which bytes and packets are sent and received over a TCP/IP network connection. It includes counters that monitor connection errors.
Läs mer: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmisdk/wmi/win32_networkadapter.asp