diff --git a/ComputingServices/ComputingServices.vbproj b/ComputingServices/ComputingServices.vbproj
index 67a6898..fd08837 100644
--- a/ComputingServices/ComputingServices.vbproj
+++ b/ComputingServices/ComputingServices.vbproj
@@ -409,6 +409,10 @@
       <Project>{fecce1fd-e1d4-49e3-a668-60bb5e7aed99}</Project>
       <Name>47-dotnet_Microsoft.VisualBasic</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\sciBASIC#\www\Microsoft.VisualBasic.NETProtocol\Microsoft.VisualBasic.Network.vbproj">
+      <Project>{a60240d1-e78b-4b96-85e3-45256571c2cb}</Project>
+      <Name>Microsoft.VisualBasic.Network</Name>
+    </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
diff --git a/ComputingServices/Linq/ILinq(Of T).vb b/ComputingServices/Linq/ILinq(Of T).vb
index 23cbe76..2887f33 100644
--- a/ComputingServices/Linq/ILinq(Of T).vb	
+++ b/ComputingServices/Linq/ILinq(Of T).vb	
@@ -1,59 +1,59 @@
 #Region "Microsoft.VisualBasic::09b5ce9e3f22ac012836f59301421f48, ComputingServices\Taskhost.d\Linq\ILinq(Of T).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:
-
-    '     Class ILinqReader
-    ' 
-    '         Properties: Portal, Type
-    ' 
-    '         Constructor: (+1 Overloads) Sub New
-    ' 
-    '         Function: AsQuerable, Moves
-    ' 
-    '         Sub: __free, (+2 Overloads) Dispose
-    ' 
-    '     Class ILinq
-    ' 
-    '         Constructor: (+1 Overloads) Sub New
-    '         Function: AsQuerable, IEnumerable_GetEnumerator, Moves, ToString
-    ' 
-    ' 
-    ' /********************************************************************************/
+' 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:
+
+'     Class ILinqReader
+' 
+'         Properties: Portal, Type
+' 
+'         Constructor: (+1 Overloads) Sub New
+' 
+'         Function: AsQuerable, Moves
+' 
+'         Sub: __free, (+2 Overloads) Dispose
+' 
+'     Class ILinq
+' 
+'         Constructor: (+1 Overloads) Sub New
+'         Function: AsQuerable, IEnumerable_GetEnumerator, Moves, ToString
+' 
+' 
+' /********************************************************************************/
 
 #End Region
 
 Imports Microsoft.VisualBasic.Net
-Imports Microsoft.VisualBasic.Net.Protocols
 Imports Microsoft.VisualBasic.Net.Tcp
+Imports Microsoft.VisualBasic.Parallel
 Imports Microsoft.VisualBasic.Serialization.JSON
 
 Namespace TaskHost
diff --git a/ComputingServices/Linq/LinqProvider.vb b/ComputingServices/Linq/LinqProvider.vb
index 7681509..9854b6b 100644
--- a/ComputingServices/Linq/LinqProvider.vb
+++ b/ComputingServices/Linq/LinqProvider.vb
@@ -1,57 +1,57 @@
 #Region "Microsoft.VisualBasic::95496139167a3b11530bef7278fc680a, ComputingServices\Taskhost.d\Linq\LinqProvider.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:
-
-    '     Class LinqProvider
-    ' 
-    '         Properties: BaseType, IsOpen, Portal
-    ' 
-    '         Constructor: (+1 Overloads) Sub New
-    ' 
-    '         Function: __moveNext, __reset, CreateObject, GetReturns, Moves
-    ' 
-    '         Sub: (+2 Overloads) Dispose
-    ' 
-    ' 
-    ' /********************************************************************************/
+' 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:
+
+'     Class LinqProvider
+' 
+'         Properties: BaseType, IsOpen, Portal
+' 
+'         Constructor: (+1 Overloads) Sub New
+' 
+'         Function: __moveNext, __reset, CreateObject, GetReturns, Moves
+' 
+'         Sub: (+2 Overloads) Dispose
+' 
+' 
+' /********************************************************************************/
 
 #End Region
 
 Imports Microsoft.VisualBasic.ComponentModel.DataSourceModel
 Imports Microsoft.VisualBasic.Net
 Imports Microsoft.VisualBasic.Net.Http
-Imports Microsoft.VisualBasic.Net.Protocols
 Imports Microsoft.VisualBasic.Net.Protocols.Reflection
 Imports Microsoft.VisualBasic.Net.Tcp
+Imports Microsoft.VisualBasic.Parallel
 Imports Microsoft.VisualBasic.Scripting.InputHandler
 Imports Microsoft.VisualBasic.Serialization.JSON
 
diff --git a/ComputingServices/Taskhost.d/Extensions.vb b/ComputingServices/Taskhost.d/Extensions.vb
index 80a1025..4553011 100644
--- a/ComputingServices/Taskhost.d/Extensions.vb
+++ b/ComputingServices/Taskhost.d/Extensions.vb
@@ -69,7 +69,7 @@ Namespace TaskHost
                 _local = value
 
                 If _local Then
-                    _IPAddress = TcpRequest.LocalIPAddress
+                    _IPAddress = LocalIPAddress
                 Else
                     _IPAddress = GetMyIPAddress()
                 End If
diff --git a/ComputingServices/Taskhost.d/Invoke/TaskHost.vb b/ComputingServices/Taskhost.d/Invoke/TaskHost.vb
index d709829..36e9aa6 100644
--- a/ComputingServices/Taskhost.d/Invoke/TaskHost.vb
+++ b/ComputingServices/Taskhost.d/Invoke/TaskHost.vb
@@ -1,45 +1,45 @@
 #Region "Microsoft.VisualBasic::3a52ca73af59bd4e745e131d24cdd22a, ComputingServices\Taskhost.d\Invoke\TaskHost.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:
-
-    '     Class TaskRemote
-    ' 
-    '         Properties: FileSystem, Key, Load
-    ' 
-    '         Constructor: (+2 Overloads) Sub New
-    '         Function: [Select], AsLinq, (+3 Overloads) Invoke, Shell
-    ' 
-    ' 
-    ' /********************************************************************************/
+' 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:
+
+'     Class TaskRemote
+' 
+'         Properties: FileSystem, Key, Load
+' 
+'         Constructor: (+2 Overloads) Sub New
+'         Function: [Select], AsLinq, (+3 Overloads) Invoke, Shell
+' 
+' 
+' /********************************************************************************/
 
 #End Region
 
@@ -48,6 +48,7 @@ Imports Microsoft.VisualBasic.Net
 Imports Microsoft.VisualBasic.Net.Http
 Imports Microsoft.VisualBasic.Net.Protocols
 Imports Microsoft.VisualBasic.Net.Tcp
+Imports Microsoft.VisualBasic.Parallel
 Imports Microsoft.VisualBasic.Serialization.JSON
 
 Namespace TaskHost
@@ -63,10 +64,10 @@ Namespace TaskHost
 
         Private Property Key As String Implements INamedValue.Key
             Get
-                Return _remote.IPAddress
+                Return _remote.ipAddress
             End Get
             Set(value As String)
-                _remote.IPAddress = value
+                _remote.ipAddress = value
             End Set
         End Property
 
diff --git a/ComputingServices/Taskhost.d/Invoke/TaskInvoke.vb b/ComputingServices/Taskhost.d/Invoke/TaskInvoke.vb
index a5f6b88..04702c3 100644
--- a/ComputingServices/Taskhost.d/Invoke/TaskInvoke.vb
+++ b/ComputingServices/Taskhost.d/Invoke/TaskInvoke.vb
@@ -1,59 +1,58 @@
 #Region "Microsoft.VisualBasic::a5c8a6ad26052cb2bd9928f1eb09ff41, ComputingServices\Taskhost.d\Invoke\TaskInvoke.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:
-
-    '     Class TaskInvoke
-    ' 
-    '         Properties: FileSystem, LinqProvider, Portal
-    ' 
-    '         Constructor: (+1 Overloads) Sub New
-    ' 
-    '         Function: __invoke, Free, GetNodeLoad, Handshake, (+2 Overloads) Invoke
-    '                   InvokeLinq, LinqSelect, Run, TryInvoke
-    ' 
-    '         Sub: (+2 Overloads) Dispose
-    ' 
-    ' 
-    ' /********************************************************************************/
+' 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:
+
+'     Class TaskInvoke
+' 
+'         Properties: FileSystem, LinqProvider, Portal
+' 
+'         Constructor: (+1 Overloads) Sub New
+' 
+'         Function: __invoke, Free, GetNodeLoad, Handshake, (+2 Overloads) Invoke
+'                   InvokeLinq, LinqSelect, Run, TryInvoke
+' 
+'         Sub: (+2 Overloads) Dispose
+' 
+' 
+' /********************************************************************************/
 
 #End Region
 
 Imports System.Reflection
 Imports Microsoft.VisualBasic.Linq
-Imports Microsoft.VisualBasic.Net
 Imports Microsoft.VisualBasic.Net.Http
-Imports Microsoft.VisualBasic.Net.Protocols
 Imports Microsoft.VisualBasic.Net.Protocols.Reflection
 Imports Microsoft.VisualBasic.Net.Tcp
+Imports Microsoft.VisualBasic.Parallel
 Imports Microsoft.VisualBasic.Serialization.JSON
 Imports Microsoft.VisualBasic.Win32
 
diff --git a/ComputingServices/Taskhost.d/Protocols.vb b/ComputingServices/Taskhost.d/Protocols.vb
index 77fb66d..486bf7b 100644
--- a/ComputingServices/Taskhost.d/Protocols.vb
+++ b/ComputingServices/Taskhost.d/Protocols.vb
@@ -1,64 +1,60 @@
 #Region "Microsoft.VisualBasic::fa83edfe7f64a5afde0ec295eb81ae44, ComputingServices\Taskhost.d\Protocols.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 Protocols
-    ' 
-    ' 
-    '         Enum TaskProtocols
-    ' 
-    '             [Select], Handshake, InvokeLinq, MoveNext, NodeLoad
-    '             RemoteFileSystem, Reset
-    ' 
-    ' 
-    ' 
-    '  
-    ' 
-    '     Properties: ProtocolEntry
-    ' 
-    '     Function: GetPortal, LinqReset, Shell
-    ' 
-    ' 
-    ' /********************************************************************************/
+' 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 Protocols
+' 
+' 
+'         Enum TaskProtocols
+' 
+'             [Select], Handshake, InvokeLinq, MoveNext, NodeLoad
+'             RemoteFileSystem, Reset
+' 
+' 
+' 
+'  
+' 
+'     Properties: ProtocolEntry
+' 
+'     Function: GetPortal, LinqReset, Shell
+' 
+' 
+' /********************************************************************************/
 
 #End Region
 
-Imports System.Runtime.CompilerServices
 Imports Microsoft.VisualBasic.CommandLine
-Imports Microsoft.VisualBasic.Net
-Imports Microsoft.VisualBasic.Net.Abstract
-Imports Microsoft.VisualBasic.Net.Protocols
 Imports Microsoft.VisualBasic.Net.Protocols.Reflection
-Imports Microsoft.VisualBasic.Net.Tcp
+Imports Microsoft.VisualBasic.Parallel
 
 Namespace TaskHost