This zip contains the installer for the newest driver for Realtek RTL8139/810x Family Fast Ethernet NIC. Realtek has this newest driver incorrectly linked on their website and I had to jump through hoops to find and download it.
I unzipped the file and manually installed the driver via "update driver" and that worked fine also. Others may prefer to have the installation done for them so this is perfect.
Installs great and works just fine. No worries of virus, etc. Not my style but scan it anyway, it's a good habit to have.