asp classic - In ASP CLASSSIC inclusions are executed before or after the statements? -

let's assume have situation like:

if session("lenguage") = "eng"  <!--#include file="eng_page.asp"-->  else  <!--#include file="not_eng_page.asp"-->  end if 

i understand if result asp file have booth includes (and 1 of them executed) or have 1 depends on session variable. mean, may use decrease weight of page? of if know snippets of codes included if deserve it...

just use server.execute:

if session("lenguage") = "eng"     server.execute("eng_page.asp")  else       server.execute("not_eng_page.asp")  end if