vbscript将访问查询导出到制表符分隔文件不起作用

I have this code:

我有这个代码:

db = "C:\Dokumente und Einstellungen\hom\Anwendungsdaten\BayWotch4\Neuer Ordner\baywotch.db5"
TextExportFile = "C:\Dokumente und Einstellungen\hom\Anwendungsdaten\BayWotch4\Neuer Ordner\Exp.txt"

Set cn = CreateObject("ADODB.Connection")
Set rs = CreateObject("ADODB.Recordset")

cn.Open _
   "Provider = Microsoft.Jet.OLEDB.4.0; " & _
   "Data Source =" & db

strSQL = "SELECT * FROM tblAuction1"

rs.Open strSQL, cn, 3, 3

Set fs = CreateObject("Scripting.FileSystemObject")

Set f = fs.CreateTextFile(TextExportFile, True)

a = rs.GetString

f.WriteLine a

f.Close
db = "C:\Dokument