WEBS上自动下载控件的实现方法

 例子代码如下所示：

<SCRIPT LANGUAGE="VBScript">
<!--

Function OCXTest()
OCXTest = 1 
dim ocx
on error resume next
err.clear
set ocx = createobject("I_FLEXGRID.FlexGridCtrl.2")
set ocx = nothing
if err <> 0 then
OCXTest = 0
err.clear
exit function
end if 
set ocx = createobject("LEDGER50_I.Ledger50Ctrl_I.1")
set ocx = nothing
if err <> 0 then
OCXTest = 0
err.clear
exit function
end if 

End function

//-->
</SCRIPT>

<Script language="JavaScript">


   var setup = OCXTest();

   if (setup==0) //客户端未安装控件，打开自解压包的链接提示用户下载安装

   {
   window.open("cab/instgb.exe");
   window.open("cab/dssview.exe");

   }


</script>