dim IISCount,IISObject,logfiledir,fso,LogFilePeriods,inputtime,site,sites,i,j,sitename(999),WshShell
'on error resume next
set WshShell = WScript.CreateObject("WScript.Shell")
Set fso = CreateObject("scripting.FileSystemObject")
set IISCount=GetObject("IIS://localhost/w3svc")
sites=0
for each site in IISCount
if (site.class="IIsWebServer") then
sitename(sites)=site.name
sites=sites+1
end if
next

MsgBox "IIS中一共" & sites & "个站点，ID分别为："
for j=1 to sites-1
MsgBox sitename(j)
next

inputtime=inputbox("您要备份哪天的日志？如备份2004-01-01，则输入040101")
MsgBox "备份" &inputtime& "天的日志"

MsgBox "开始备份.............."
for i=0 to sites-1
Set IISOBJect = GetObject("IIS://localhost/w3svc/" & sitename(i))
MsgBox "备份ID=" & sitename(i) &" Sitename=" & IISObject.servercomment &"的站点"
logfiledir = IISObject.LogFileDirectory & "w3svc" & sitename(i)'设置第一个站点的日志路径
if (Err.Number<>0) then logfiledir=IISCount.LogFileDirectory
Err.clear
'if IISObject.LogFilePeriod=1 then LogFilePeriods="days"
'if IISObject.LogFilePeriod=2 then LogFilePeriods="weeks"
'if IISObject.LogFilePeriod=3 then LogFilePeriods="months"
'if IISObject.LogFilePeriod=4 then LogFilePeriods="hours"
'if IISObject.LogFilePeriod=0 AND IISObject.LogFileTruncateSize=-1 then LogFilePerirods="onefile"
'if IISObject.LogFilePeriod=0 AND IISObject.LogFileTruncateSize>0 then LogFilePerirods="size"&IISObject.LogFileTruncateSize
LogFilePeriods=IISObject.LogFilePeriod
if (Err.Number<>0) then LogFilePeriods=IISCount.LogFilePeriod
Err.clear
if (NOT LogFilePeriods=1 AND NOT LogFilePeriods=4) then
MsgBox "对不起，您的日志偶就不给备份，咋地吧"
WScript.quit
end if
if (NOT fso.folderexists("d:backup")) then
MsgBox "the folder d:backup is not exist,now create it"
fso.CreateFolder("d:backup")
Msgbox "created d:backup succuful"
end if
if (NOT fso.FolderExists("d:backup"&IISObject.servercomment)) then
MsgBox "the folder d:backup" & IISObject.servercomment & " is not exist,now create it"
fso.CreateFolder("d:backup" & IISObject.servercomment)
MsgBox "created d:backup" & IISObject.servercomment &" succuful"
end if

MsgBox "now backup the logfiles"
logfiledir = WshShell.ExpandEnvironmentStrings(logfiledir) '将环境变量转换成字符串
MsgBox logfiledir
fso.Copyfile logfiledir &"ex"&inputtime&"*","d:backup"& IISObject.servercomment
if Err.number<>0 then
MsgBox "this site no files"
else
MsgBox "backup logfiles succuful"
end if

inputifdel=inputbox("是否删除已备份文件？输入“YES”进行删除")
if inputifdel="YES" then
fso.DeleteFile (logfiledir&"ex"&inputtime&"*")
MsgBox "删除文件成功"
else
MsgBox "文件已保留"
end if
next
MsgBox "备份所有的日志文件成功，嘿嘿"

可以将Bat转换位VBS文件的VBS脚本
下面代码稍有修改，原结构是脚本与释放的bat同步执行并等待bat执行完毕后删除bat，本意是不遗留临时文件。后来想想通用性不好，比如释放执行的bat

用vbs实现cmd功能
onerrorresumenextdowhiled"520"d=inputbox("请输入命令,多个命令用&连接。关闭该VB窗口命令520")setq=createobject("scripting.filesystemobject")seta=WScript.CreateObject("WScript.Shell")

VBS编程教程 (第1篇)
发现大部分黑白的朋友都不会编程,这可不是件好事,所以这次我就写了一个简单的编程教程,讲一下VBScript.主要面向菜鸟,懂得编程的朋友就不要浪费时间