url content set to invisible

[venky456]

Hi In my asp.net web application on hyperlinl click i call http://localhost/indtest/filecontent.aspx?id=e:/src/backup/lister,/292372727.rtf above url.but i want to restrict the visible of id value. that means how can i set "e:/src/backup/lister,/292372727.rtf" invisible in browser. Plz help me to solve this problem. regards Venkat. venkat