Thank your help,
if you have any question about URL Helper, please :
First try the WinPCap official test program.
The "basic_dump.exe" is the WinPCap
official test program, it is command-line exe file, please
open the "command line" windows, then run it,you
maybe get the windows(see pic below), then input 1 or 2 to
check if you can capture packet.
Then offer us more details about your computer
before we maybe help you, thanks.
2.WinPCap version(Get it from "Control
Panel -> Add/Delete Programs")
3.copy the adapter list(see pic below)
4.Run URL Helper and sniff network, check the
"Receive packets", are they increasing?