diff --git a/CloudKit/Docker/Commands.vb b/CloudKit/Docker/Commands.vb
index d22a065..18d5fa3 100644
--- a/CloudKit/Docker/Commands.vb
+++ b/CloudKit/Docker/Commands.vb
@@ -1,43 +1,43 @@
 #Region "Microsoft.VisualBasic::b8b59986a2c04e2f72184e70927a18c1, CloudKit\Docker\Commands.vb"
 
-    ' Author:
-    ' 
-    '       asuka (amethyst.asuka@gcmodeller.org)
-    '       xie (genetics@smrucc.org)
-    '       xieguigang (xie.guigang@live.com)
-    ' 
-    ' Copyright (c) 2018 GPL3 Licensed
-    ' 
-    ' 
-    ' GNU GENERAL PUBLIC LICENSE (GPL3)
-    ' 
-    ' 
-    ' This program is free software: you can redistribute it and/or modify
-    ' it under the terms of the GNU General Public License as published by
-    ' the Free Software Foundation, either version 3 of the License, or
-    ' (at your option) any later version.
-    ' 
-    ' This program is distributed in the hope that it will be useful,
-    ' but WITHOUT ANY WARRANTY; without even the implied warranty of
-    ' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    ' GNU General Public License for more details.
-    ' 
-    ' You should have received a copy of the GNU General Public License
-    ' along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-
-
-    ' /********************************************************************************/
-
-    ' Summaries:
-
-    ' Module Commands
-    ' 
-    '     Function: CommandHistory, PS, rmi, Run, Search
-    ' 
-    '     Sub: [Stop]
-    ' 
-    ' /********************************************************************************/
+' Author:
+' 
+'       asuka (amethyst.asuka@gcmodeller.org)
+'       xie (genetics@smrucc.org)
+'       xieguigang (xie.guigang@live.com)
+' 
+' Copyright (c) 2018 GPL3 Licensed
+' 
+' 
+' GNU GENERAL PUBLIC LICENSE (GPL3)
+' 
+' 
+' This program is free software: you can redistribute it and/or modify
+' it under the terms of the GNU General Public License as published by
+' the Free Software Foundation, either version 3 of the License, or
+' (at your option) any later version.
+' 
+' This program is distributed in the hope that it will be useful,
+' but WITHOUT ANY WARRANTY; without even the implied warranty of
+' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+' GNU General Public License for more details.
+' 
+' You should have received a copy of the GNU General Public License
+' along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+
+' /********************************************************************************/
+
+' Summaries:
+
+' Module Commands
+' 
+'     Function: CommandHistory, PS, rmi, Run, Search
+' 
+'     Sub: [Stop]
+' 
+' /********************************************************************************/
 
 #End Region
 
@@ -217,7 +217,11 @@ Public Module Commands
             .Mount(mounts) _
             .CreateDockerCommand(command, workdir, portForward)
 
+#If UNIX = 0 Then
+        Return CommandLine.Call("docker", cli.GetTagValue.Value)
+#Else
         Return powershell(cli)
+#End If
     End Function
 
     ''' <summary>
diff --git a/CloudKit/Docker/Docker.vbproj b/CloudKit/Docker/Docker.vbproj
index 2eeaa10..7c64a61 100644
--- a/CloudKit/Docker/Docker.vbproj
+++ b/CloudKit/Docker/Docker.vbproj
@@ -24,6 +24,7 @@
     <NoWarn>41999,42016,42017,42018,42019,42020,42021,42022,42032,42036</NoWarn>
     <WarningsAsErrors>
     </WarningsAsErrors>
+    <DefineConstants>UNIX=0</DefineConstants>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
diff --git a/CloudKit/Docker/Environment.vb b/CloudKit/Docker/Environment.vb
index 05aa55d..533d54a 100644
--- a/CloudKit/Docker/Environment.vb
+++ b/CloudKit/Docker/Environment.vb
@@ -227,7 +227,9 @@ Public Class Environment
     ''' <param name="command">``app arguments``</param>
     ''' <param name="workdir">Working directory inside the container</param>
     ''' <param name="portForward">Publish a container's port(s) to the host</param>
-    ''' <returns></returns>
+    ''' <returns>
+    ''' docker run xxx
+    ''' </returns>
     Public Function CreateDockerCommand(command$, Optional workdir$ = Nothing, Optional portForward As PortForward = Nothing) As String
         Dim options As New StringBuilder