What you have downloadded is Qlikview Desktop
Not Qlikview WebPart. There is seperate installer available for Qlikview Webpart.
Moreover you need to have Qlikview Server Not Desktop In order to Integrate Your sharepoint With Qlikview.
One More thing to keep in consideration is that you should have the same installer as for qlikview webpart as that of qlikview server
for example if you have qlikview server 9 sr6 then you must have webpart sr6 itself.
Prior to all of this make sure that your licence is webpart enable and you have enterprise edition of qlikview server.
If you have SBE the it will not be supported for Sharepoint Integration