> I know that in the case of PowerShell there are better ways to "wrap" the
> console by directly interfacing with the assemblies of
> System.Management.Automation or some similarly named namespace, but I'm
> trying to use generic command line wrappers for multiple types of processes
> that use the console I/O, and PowerShell was a handy example of why this
> won't work.

> ProcessStartInfo psi = new ProcessStartInfo(
> @"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe");
> psi.Arguments = "-NoLogo";
> psi.UseShellExecute = false;
> psi.CreateNoWindow = true;
> psi.RedirectStandardInput = true;
> psi.RedirectStandardOutput = true;
> //psi.RedirectStandardError = true;
> Process process = new Process();
> process.StartInfo = psi;
> bool started = process.Start();
> if (started)
> {
>     process.StandardInput.WriteLine("2+2");
>     process.StandardInput.Flush();
>     string ret = process.StandardOutput.ReadLine(); // <-- stalls here
>     System.Console.WriteLine("PowerShell says \"2+2=" + ret + "\".");

> }

> Another one I was trying to "wrap" was the original implementation of Dave
> Raggett's HTML Tidy. The stuff below sometimes stalls on ReadToEnd(). It
> seemed to always stall until I added "process.StandardInput.Close();" after
> "process.StandardInput.Flush();" but it still stalls on ReadToEnd() half the
> time.

> ..
> _TidyProcessStartInfo = new ProcessStartInfo(
> Directory.GetParent(System.Reflection.Assembly.GetExecutingAssembly().Locat ion)
> + "\\tidy.exe");
> _TidyProcessStartInfo.UseShellExecute = false;
> _TidyProcessStartInfo.CreateNoWindow = true;
> _TidyProcessStartInfo.RedirectStandardInput = true;
> _TidyProcessStartInfo.RedirectStandardOutput = true;
> _TidyProcessStartInfo.RedirectStandardError = true;
> . . .
> Process process = new Process();
> process.StartInfo = _TidyProcessStartInfo;
> process.ErrorDataReceived += new
> DataReceivedEventHandler(Exe_ErrorDataReceived);
> bool started = process.Start();
> if (started)
> {
>     //process.StandardInput.AutoFlush = true;
>     process.StandardInput.WriteLine(input);
>     process.StandardInput.Flush();
>     process.StandardInput.Close();
>     ret = process.StandardOutput.ReadToEnd();

> }

> Thanks,
> Jon