Previous versions of Internet Information Server (IIS) allowed an ASP page to include the contents of another file using code like this:
With IIS 5.0, you can include the file at the server side with the <SCRIPT> tag and SRC attribute. The new syntax is:
<SCRIPT LANGUAGE="VBSCRIPT" RUNAT="SERVER" SRC="FILE.INC"></SCRIPT>
With a server-side include, all code in the included page appears to the scripting engine as though it were between the <SCRIPT> and </SCRIPT> tags and so unlike the #include directive, the included page will consist of raw code only.