h_open:=InternetOpen('Mozilla/5.0 (compatible; MSIE 6.0; SV1; MRA 4.8 (build 01705))',
             INTERNET_OPEN_TYPE_PROXY,'192.168.2.1:8080',nil,0);
if h_open=nil then exit;
h_connect:=InternetConnect(h_open,'ya.ru',INTERNET_DEFAULT_HTTP_PORT,nil,nil,INTERNET_SERVICE_HTTP,0,0);
if h_connect=nil then exit;
h_request:=HttpOpenRequest(h_connect,'GET','/','HTTP/1.0','ya.ru',nil,INTERNET_FLAG_KEEP_CONNECTION,0);
if h_request=nil then exit;
HttpSendRequest(h_request,nil,0,nil,0);
setlength(mas,1024);
outs:='';
repeat
InternetReadFile(h_request,mas,1024,cardinal(l));
s:=copy(Pchar(mas),1,l);
outs:=outs+s;
until l<=0;