此方法，不建议压缩，大文件，

一般的小文件压几个还很好用的

<%@ Language=VBScript %>
<% Option Explicit %>
<!--#include file="asptar.asp"-->
<%
Response.Buffer = True
Response.Clear
Dim Co,Temp,T,x,i,fsoBrowse,theFolder,TheSubFolders,FilePath,s,PH,objTar
Co=0
PH="./UpFile" '文件路径 '压缩Upfile下的所有文件
   Set objTar = New Tarball
   objTar.TarFilename="LvBBS_UpdateFile.rar"  '打包的名称
   objTar.Path=PH
   set fsoBrowse=CreateObject("Scripting.FileSystemObject")
   Set theFolder=fsoBrowse.GetFolder(Server.Mappath(PH))
   Set theSubFolders=theFolder.SubFolders
   For Each T in theFolder.Files
      Temp= Temp & T.Name & "|"
      Co=Co+1
   Next
   For Each x In theSubFolders
      For Each i In X.Files
         Temp= Temp &  X.Name&"/"&i.Name&"|"
         Co=Co+1
      Next
   Next
   If Co<1 Then
      Response.Write "暂时没有可更新的文件下载"
   'objTar.AddMemoryFile "Sorry.txt","Not File!"
   Else
      Temp=Left(Temp,Len(Temp)-1)
      FilePath=Split(Temp,"|")
      For s=0 To Ubound(FilePath)
        objTar.AddFile Server.Mappath(PH&"/"&FilePath(s))
      Next
   If Response.IsClientConnected Then
        objTar.WriteTar
        Response.Flush
   End If
   End If
   Set ObjTar = Nothing
   Set fsoBrowse= Nothing
   Set theFolder = Nothing
   Set theSubFolders = Nothing

%>

asptar.asp

<%
' UNIX Tarball creator
' ====================
' Author: Chris Read
' Version: 1.0.1
' ====================
' Homepage: http://users.bigpond.net.au/mrjolly/
'
' This class provides the ability to archive multiple files together into a single
' distributable file called a tarball (The TAR actually stands for Tape ARchive).
' These are common UNIX files which contain uncompressed data.
'
' So what is this useful for? Well, it allows you to effectively combine multiple
' files into a single file for downloading. The TAR files are readable and extractable
' by a wide variety of tools, including the very widely distributed WinZip.
'
' This script can include two types of data in each archive, file data read from a disk,
' and also things direct from memory, like from a string. The archives support files in
' a binary structure, so you can store executable files if you need to, or just store
' text.
'
' This class was developed to assist me with a few projects and has grown with every
' implementation. Currently I use this class to tarball XML data for archival purposes
' which allows me to grab 100's of dynamically created XML files in a single download.
'
' There are a small number of properties and methods, which are outlined in the
' accompanying documentation.
'
Class Tarball
Public TarFilename   ' Resultant tarball filename

Public UserID    ' UNIX user ID
Public UserName    ' UNIX user name
Public GroupID    ' UNIX group ID
Public GroupName   ' UNIX group name