You can display Wireshark from your LANforge system onto your Windows desktop. You need to install some kind of X client software, and Xming does a fine job. However, X comes with some access controls. On a Linux system, you disable access controls with the command xhost +. This allows any host to display a window on your desktop.
Xming has a similar setting. After you install Xming and start it. you want to use the XLaunch utility it comes with to configure settings. You have to get to that from the Start Menu.
The XLaunch program allows you to configure multiple ways to displaying X clients. Display 0 (zero) is fine.
You do not need to start a client program on Xming start.
You do want to enable clipboard. Select No Access Control.
Then go ahead and Save on the next screen, save the configuration to your Documents folder.
If there is a running session of Xming, exit it.
Double-click on the config.xlaunch you created.
Click on Sniff Packets in LANforge and you should see Wireshark start up.
Notice that the IP of your desktop should be displayed right next to the Sniff Packets button. You can type in the exact IP and X display number you need.