have you got the necessary DLLs installed in your system?<BR> the DLLs is available here:<BR> <A href="http://www.winpcap.org/install/default.htm" target=_blank><FONT color=#003399>http://www.winpcap.org/install/default.htm</FONT></A><BR> just download the "(driver +DLLs)" and install it.<BR> hope it help.<p> 
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