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

Public Permissions   ' UNIX permissions

Public BlockSize   ' Block byte size for the tarball (default=512)

Public IgnorePaths   ' Ignore any supplied paths for the tarball output
Public BasePath    ' Insert a base path with each file
Public Path

' Storage for file information
Private objFiles,TmpFileName
Private objMemoryFiles

' File list management subs, very basic stuff
Public Sub AddFile(sFilename)
  objFiles.Add sFilename,sFilename
End Sub

Public Sub RemoveFile(sFilename)
  objFiles.Remove sFilename
End Sub

Public Sub AddMemoryFile(sFilename,sContents)
  objMemoryFiles.Add sFilename,sContents
End Sub

Public Sub RemoveMemoryFile(sFilename)
  objMemoryFiles.Remove sFilename
End Sub

' Send the tarball to the browser
Public Sub WriteTar()
  Dim objStream, objInStream, lTemp, aFiles

  Set objStream = Server.CreateObject("ADODB.Stream") ' The main stream