diff --git a/.gitignore b/.gitignore
index 1998c29..3cd5480 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,4 @@
-.cache
\ No newline at end of file
+.cache
+*~
+*#*#
+.appdata
diff --git a/bin/progress.cmd b/bin/progress.cmd
new file mode 100644
index 0000000..0126e86
--- /dev/null
+++ b/bin/progress.cmd
@@ -0,0 +1,2 @@
+@echo off
+powershell -File %~dp0\progress.ps1 -- "%*"
\ No newline at end of file
diff --git a/bin/progress.cs b/bin/progress.cs
new file mode 100644
index 0000000..09c38f1
--- /dev/null
+++ b/bin/progress.cs
@@ -0,0 +1,239 @@
+using System.Diagnostics;
+using System.Windows.Forms;
+using System.Drawing;
+using System.Runtime.InteropServices;
+using System;
+using System.ComponentModel;
+using System.Threading;
+
+public class Progress {
+    private static readonly IntPtr HWND_TOPMOST = new IntPtr(-1);
+    private static readonly IntPtr HWND_NOTOPMOST = new IntPtr(-2);
+    private const UInt32 SWP_NOSIZE = 0x0001;
+    private const UInt32 SWP_NOMOVE = 0x0002;
+    private const UInt32 TOPMOST_FLAGS = SWP_NOMOVE | SWP_NOSIZE;
+    [DllImport("user32.dll")] 
+    [return: MarshalAs(UnmanagedType.Bool)]
+    public static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);
+    
+    private string line;
+    public Progress(string line) {
+        this.line = line;
+    }
+    
+    public void Run() {
+        Form f = new Form();
+        f.Width = 800;
+        f.Height = 35;
+        f.Text = line;
+        f.StartPosition = FormStartPosition.CenterParent;
+        f.FormBorderStyle = FormBorderStyle.None;
+        f.Load += ((o, e) => f.TopMost = true);
+        TextBox t = new TextBox();
+        t.Dock = DockStyle.Fill;
+        t.Multiline = true;
+        t.ReadOnly = true;
+        t.AcceptsReturn = true;
+        t.AcceptsTab = true;
+        t.Font = new Font("Consolas", 14);
+        f.Controls.Add(t);
+        SetWindowPos(f.Handle, HWND_TOPMOST, 0, 0, 0, 0, TOPMOST_FLAGS);
+        
+        Process proc = new Process();
+        proc.StartInfo.UseShellExecute = false;
+        proc.StartInfo.FileName = "cmd";
+        proc.StartInfo.Arguments = "/c " + line;
+        proc.StartInfo.CreateNoWindow = false;
+        proc.StartInfo.RedirectStandardOutput = true;
+        proc.StartInfo.RedirectStandardError = true;
+        proc.EnableRaisingEvents = true;
+        proc.OutputDataReceived += ((sender, args) =>
+             f.BeginInvoke(new MethodInvoker( () => {t.AppendText("\r\n" + args.Data);}))
+        );
+        
+        proc.ErrorDataReceived += ((sender, args) =>
+             f.BeginInvoke(new MethodInvoker( () => {t.AppendText("\r\n" + args.Data);}))   
+        );
+        
+        proc.Exited += ((sender, args) => {
+            onexit(proc, f);         
+        });
+        try {
+            proc.Start();
+        } catch (Exception) {
+            onexit(proc, f);
+        }
+        proc.BeginOutputReadLine();
+        proc.BeginErrorReadLine();
+        ChildProcessTracker.AddProcess(proc);
+        f.ShowDialog();
+        
+        try {
+            if (!proc.HasExited)
+            {
+                proc.Kill();
+            }
+        } catch (Exception){}
+    }
+    
+    void onexit(Process proc, Form f) {
+        SetWindowPos(f.Handle, HWND_NOTOPMOST, 0, 0, 0, 0, TOPMOST_FLAGS);
+        if (proc.ExitCode != 0) {
+            if (MessageBox.Show(
+                    String.Format("上一条命令失败了, 是否重试: \n{0}", line),
+                    "是否重试?",
+                    MessageBoxButtons.RetryCancel,
+                    MessageBoxIcon.Question) == DialogResult.Retry) {
+                new Thread(new ThreadStart(() => {
+                     Thread.Sleep(500);
+                     f.DialogResult = DialogResult.OK;
+                })).Start();
+                Run();
+            } else {
+               f.DialogResult = DialogResult.OK;
+            }
+        } else {
+               f.DialogResult = DialogResult.OK;
+        }
+           
+    }
+}
+
+
+//// http://stackoverflow.com/questions/3342941/kill-child-process-when-parent-process-is-killed
+
+/// <summary>
+/// Allows processes to be automatically killed if this parent process unexpectedly quits.
+/// This feature requires Windows 8 or greater. On Windows 7, nothing is done.</summary>
+/// <remarks>References:
+///  http://stackoverflow.com/a/4657392/386091
+///  http://stackoverflow.com/a/9164742/386091 </remarks>
+public static class ChildProcessTracker
+{
+    /// <summary>
+    /// Add the process to be tracked. If our current process is killed, the child processes
+    /// that we are tracking will be automatically killed, too. If the child process terminates
+    /// first, that's fine, too.</summary>
+    /// <param name="process"></param>
+    public static void AddProcess(Process process)
+    {
+        if (s_jobHandle != IntPtr.Zero)
+        {
+            bool success = AssignProcessToJobObject(s_jobHandle, process.Handle);
+            if (!success)
+                throw new Win32Exception();
+        }
+    }
+
+    static ChildProcessTracker()
+    {
+        // This feature requires Windows 8 or later. To support Windows 7 requires
+        //  registry settings to be added if you are using Visual Studio plus an
+        //  app.manifest change.
+        //  http://stackoverflow.com/a/4232259/386091
+        //  http://stackoverflow.com/a/9507862/386091
+        if (Environment.OSVersion.Version < new Version(6, 2))
+            return;
+
+        // The job name is optional (and can be null) but it helps with diagnostics.
+        //  If it's not null, it has to be unique. Use SysInternals' Handle command-line
+        //  utility: handle -a ChildProcessTracker
+        string jobName = "ChildProcessTracker" + Process.GetCurrentProcess().Id;
+        s_jobHandle = CreateJobObject(IntPtr.Zero, jobName);
+
+        var info = new JOBOBJECT_BASIC_LIMIT_INFORMATION();
+
+        // This is the key flag. When our process is killed, Windows will automatically
+        //  close the job handle, and when that happens, we want the child processes to
+        //  be killed, too.
+        info.LimitFlags = JOBOBJECTLIMIT.JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE;
+
+        var extendedInfo = new JOBOBJECT_EXTENDED_LIMIT_INFORMATION();
+        extendedInfo.BasicLimitInformation = info;
+
+        int length = Marshal.SizeOf(typeof(JOBOBJECT_EXTENDED_LIMIT_INFORMATION));
+        IntPtr extendedInfoPtr = Marshal.AllocHGlobal(length);
+        try
+        {
+            Marshal.StructureToPtr(extendedInfo, extendedInfoPtr, false);
+
+            if (!SetInformationJobObject(s_jobHandle, JobObjectInfoType.ExtendedLimitInformation,
+                extendedInfoPtr, (uint)length))
+            {
+                throw new Win32Exception();
+            }
+        }
+        finally
+        {
+            Marshal.FreeHGlobal(extendedInfoPtr);
+        }
+    }
+
+    [DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
+    static extern IntPtr CreateJobObject(IntPtr lpJobAttributes, string name);
+
+    [DllImport("kernel32.dll")]
+    static extern bool SetInformationJobObject(IntPtr job, JobObjectInfoType infoType,
+        IntPtr lpJobObjectInfo, uint cbJobObjectInfoLength);
+
+    [DllImport("kernel32.dll", SetLastError = true)]
+    static extern bool AssignProcessToJobObject(IntPtr job, IntPtr process);
+
+    // Windows will automatically close any open job handles when our process terminates.
+    //  This can be verified by using SysInternals' Handle utility. When the job handle
+    //  is closed, the child processes will be killed.
+    private static readonly IntPtr s_jobHandle;
+}
+
+public enum JobObjectInfoType
+{
+    AssociateCompletionPortInformation = 7,
+    BasicLimitInformation = 2,
+    BasicUIRestrictions = 4,
+    EndOfJobTimeInformation = 6,
+    ExtendedLimitInformation = 9,
+    SecurityLimitInformation = 5,
+    GroupInformation = 11
+}
+
+[StructLayout(LayoutKind.Sequential)]
+public struct JOBOBJECT_BASIC_LIMIT_INFORMATION
+{
+    public Int64 PerProcessUserTimeLimit;
+    public Int64 PerJobUserTimeLimit;
+    public JOBOBJECTLIMIT LimitFlags;
+    public UIntPtr MinimumWorkingSetSize;
+    public UIntPtr MaximumWorkingSetSize;
+    public UInt32 ActiveProcessLimit;
+    public Int64 Affinity;
+    public UInt32 PriorityClass;
+    public UInt32 SchedulingClass;
+}
+
+[Flags]
+public enum JOBOBJECTLIMIT : uint
+{
+    JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE = 0x2000
+}
+
+[StructLayout(LayoutKind.Sequential)]
+public struct IO_COUNTERS
+{
+    public UInt64 ReadOperationCount;
+    public UInt64 WriteOperationCount;
+    public UInt64 OtherOperationCount;
+    public UInt64 ReadTransferCount;
+    public UInt64 WriteTransferCount;
+    public UInt64 OtherTransferCount;
+}
+
+[StructLayout(LayoutKind.Sequential)]
+public struct JOBOBJECT_EXTENDED_LIMIT_INFORMATION
+{
+    public JOBOBJECT_BASIC_LIMIT_INFORMATION BasicLimitInformation;
+    public IO_COUNTERS IoInfo;
+    public UIntPtr ProcessMemoryLimit;
+    public UIntPtr JobMemoryLimit;
+    public UIntPtr PeakProcessMemoryUsed;
+    public UIntPtr PeakJobMemoryUsed;
+}
\ No newline at end of file
diff --git a/bin/progress.ps1 b/bin/progress.ps1
new file mode 100644
index 0000000..a47bb8a
--- /dev/null
+++ b/bin/progress.ps1
@@ -0,0 +1,9 @@
+$cmdline = [System.Environment]::CommandLine
+$index = $cmdline.IndexOf("--")
+echo $cmdline
+$cmdline = $cmdline.SubString($index + 2).Trim()
+$dir = Split-Path -Parent $MyInvocation.MyCommand.Definition
+$env:path="$dir;$env:path"
+Add-Type -TypeDefinition (Get-Content $dir\progress.cs -raw) -ReferencedAssemblies System.Windows.Forms,System.Drawing,System.Runtime
+$wnd = New-Object Progress($cmdline)
+$wnd.Run()
\ No newline at end of file
diff --git a/start.cmd b/start.cmd
index dcf33bd..f5b9784 100644
--- a/start.cmd
+++ b/start.cmd
@@ -1,3 +1,2 @@
 @echo off
-call %~dp0\env.cmd
-cmd /k
\ No newline at end of file
+cmd /k %~dp0\env.cmd