Create folder on hard drive.Name folder Ess Technologies.Unzip driver file to Ess Technologies Folder.Open Control Panels/Add New Hardware.Click next.Click No to search for new hardware.Click next.Highlight Modem.Click next.Click Don't detect modem.Click next.Click Have disk.Click browse.Select drive where Ess Technologies folder resides.Double click Ess Technologies folder.Highlight file name Mdmess.inf.Click ok.Again click ok.