<tt>Error: "An error occurred while installing the Microsoft Network Monitor Driver
</tt><tt>(NetMon) (0x800F0203). You will be able to use WinPcap on standard
</tt><tt>network adapters, but not on Dialup connections and VPNs. Please contact
</tt><tt>the WinPcap team."<br><br>I've been struggling with this error for the past 2 hours and I finally found a solution. Now I'm finally able to run GNS (Cisco emulator). I believe the problem stems from using a heavily customized version (i.e. stripped) of Windows XP SP2. First I tried uninstall Winpcap and installing the latest beta release which didn't help. Then I tried installing Windows XP Support Tool and running "c:\Program Files\Support Tools\netcap.exe", which failed to work. So that led me down a different route which was to install Microsoft Network Monitor 3.2 from: <br>
<br><a href="http://www.microsoft.com/downloads/details.aspx?FamilyID=f4db40af-1e08-4a21-a26b-ec2f4dc4190d&displaylang=en#filelist">http://www.microsoft.com/downloads/details.aspx?FamilyID=f4db40af-1e08-4a21-a26b-ec2f4dc4190d&displaylang=en#filelist</a><br>
<br>After installing Netmon 3.2, I ran the program and everything launched without a problem. So I ran the Winpcap beta again. Note that I still got the error during installation, but I was able to run Dynamips. This finally allowed me to launch GNS and start using it. I know other people have run into this problem and I hope this information will help avoid reinstallations of Windows. <br>
<br>Thanks,<br>Matt<br><br></tt>