The DateCreated property is used to get the date in which the file was created.
<html>
<BODY>
<script language="JScript">
<!--
function get()
{
var myObject, f, date;
myObject = new ActiveXObject("Scripting.FileSystemObject");
f = myObject.GetFile("c:\\mytest.txt");
date = f.DateCreated;
alert ("The date this file was created is: " + date);
}
//-->
</script>
Get the date that mytest.txt was created.
<form name="myForm">
<INPUT type="Button" value="Get Date" onClick='get()'>
</form>
</BODY>
</html>