Model: Realtek RTL8139/810x Family Fast Ethernet NIC
Operating System: Windows 98SE (Note: might work with other versions of this os.)
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.