我正在尝试制作一个C#应用程序，它将连接到文件共享，写入文件，然后断开连接。

NetUseCmd = "net use t: \\Hostname\Vol /user:UserName SomePass"
System.Diagnostics.Process.Start(NetUseCmd);
Directory.CreateDirectory(DriveLetter + ":/" + DirName);
StreamWriter file = new StreamWriter(DriveLetter + ":/" + FileName);
file.Write(logdata);
file.Close();
System.Diagnostics.Process.Start("net use " + DriveLetter + ": /del");

在第二行，我看到了错误：

System.ComponentModel.Win32Exception was unhandled
  Message="The system cannot find the file specified"
  Source="System"
  ErrorCode=-2147467259
  NativeErrorCode=2
  StackTrace:
       at System.Diagnostics.Process.StartWithShellExecuteEx(ProcessStartInfo startInfo)
       at System.Diagnostics.Process.Start()
       at System.Diagnostics.Process.Start(ProcessStartInfo startInfo)
       at System.Diagnostics.Process.Start(String fileName)
       [...]
       at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException:

我知道错误消息意味着它找不到net命令，但我不明白为什么它找不到它。