For Windows 95/98/ME/NT/2000
Just unzip then tell windows to search in the folder you unziped it to
then if windows can't find a file named "Pcmndis.sys" tell it to search in the "Win9x" folder if you use Windows 95/98/ME, the "WinNT" folder if you use Windows NT, or the "Win2000" folder if you use Windows 2000