TNS listerner failed while installing oracle 8.1.7 client

TNS listerner failed while installing oracle 8.1.7 client

 

  

Hello every body i'm installing oracle 8.1.7 client on
my machine and it is giving me error as TNS lister
failed to connect to the server .I'm connecting it to
server by giving host name equals to server and
service name equals to oracle8i .But when testing this
,it is giving me TNS listener failed while connecting
it to the server .I'm not able to get it what is the
exact problem
Plz help me out
Amit

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