Thank your help, if you have
any question about URL Helper, please :
First try the WinPCap official
test program.
basic_dump.exe
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.
1.Windows OS
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?

mailto: webmaster@urlhelper.com