Enable AirDrop on older Macs

We all know that Apple has disabled the useful function AirDrop on its older Macs. Now with some work in Terminal, you can enable AirDrop for many older Lion systems at the Terminal command line. Enter:

defaults write com.apple.NetworkBrowser BrowseAllInterfaces 1

After setting the defaults, A restart of Finder will be necessary:

killall Finder

Once you do, you will see the AirDrop icon on the left panel of Finder.