主题：请教:关于FTP500错误

Dim ftp1 As new ftpclient 

ftp1.host="ftp.*********:2121" 

ftp1.Account = "******"

ftp1.password = "******"

If ftp1.FileExists("db/VI/订单.mdb") = False Then

    MessageBox.Show("还未上报今天数据","提示")

   Return 

End If

ftp1.Download("db/VI/订单.mdb","D:\new\订单.mdb") '下载ftp上的上报文件

ftp1.Delete("db/VI/订单.mdb") '下载成功后删除ftp上的上报文件.

.NET Framework 版本：2.0.50727.4971

Foxtable 版本：2012.9.29.1

错误所在事件：

详细错误信息：

System.Net.WebException: 远程服务器返回错误: (500) 语法错误，无法识别命令。

   在 Microsoft.VisualBasic.MyServices.Internal.WebClientCopy.DownloadFile(Uri address, String destinationFileName)

   在 Microsoft.VisualBasic.Devices.Network.DownloadFile(Uri address, String destinationFileName, ICredentials networkCredentials, Boolean showUI, Int32 connectionTimeout, Boolean overwrite, UICancelOption onUserCancel)

   在 Microsoft.VisualBasic.Devices.Network.DownloadFile(String address, String destinationFileName, String userName, String password, Boolean showUI, Int32 connectionTimeout, Boolean overwrite, UICancelOption onUserCancel)

   在 Microsoft.VisualBasic.Devices.Network.DownloadFile(String address, String destinationFileName, String userName, String password, Boolean showUI, Int32 connectionTimeout, Boolean overwrite)

   在 Foxtable.FTPClient.Download(String OlllO10O01O10O, String OO111llll1OOOll1llO)