'該腳本要求執行用戶有本地管理員權限Const ForReading = 1, ForWriting = 2, ForAppending = 8, ReadOnly = 1Set fso = CreateObject("Scripting.FileSystemObject")Set WshShell=CreateObject("WScript.Shell")'WinDir 為windows安裝目錄WinDir =WshShell.ExpandEnvironmentStrings("%WinDir%")'設定host 文件目錄HostsFile = WinDir & "/System32/Drivers/etc/Hosts"'檢查host文件是否為只讀，如為只讀，則修改文件屬性Set objFSO = CreateObject("Scripting.FileSystemObject")Set objFile = objFSO.GetFile(HostsFile)If objFile.Attributes And ReadOnly Then objFile.Attributes = objFile.Attributes Xor ReadOnlyEnd IfSet objFSO = CreateObject("Scripting.FileSystemObject")Set objFile = objFSO.OpenTextFile(HostsFile, ForReading,true)'檢查host文件里面是否已經更改過了，如果更改過，則不再執行腳本hostfileline=""Do Until objFile.AtEndOfStreamstrline = objfile.ReadLineIf InStr (strline, "202.102.101.105") <> 0 Or (InStr (strline, "202.102.101.107"))<>0 Or (InStr (strline, "202.102.101.108"))  Then  strline=""End If  hostfileline=hostfileline+vbCrLf+strlineLoopWScript.Echo hostfilelineobjFile.Close'修改host文件Set filetxt = fso.OpenTextFile(HostsFile, ForWriting )filetxt.Write hostfilelinefiletxt.CloseWScript.Quit