VBScript压缩单个文件为zip格式

On Error Resume Next
Dim fso,fp,oApp,targetfile
Set fso=CreateObject("Scripting.FileSystemObject")
targetfile="D:\tmp.zip"
Set fp=fso.OpenTextFile(targetfile,2,True)
fp.Write Chr(80) Chr(75) Chr(5) Chr(6) String(18,0)
fp.Close
Set oApp=CreateObject("Shell.Application")
Set fso=Nothing
Err.Clear
oApp.Namespace(targetfile).CopyHere "C:\1.txt"
WScript.Sleep 1000