diff --git a/src/ApplicationServices/Debugger/Exception/ExceptionData.vb b/src/ApplicationServices/Debugger/Exception/ExceptionData.vb
index 4d94b7d2..6e0f5bc7 100644
--- a/src/ApplicationServices/Debugger/Exception/ExceptionData.vb
+++ b/src/ApplicationServices/Debugger/Exception/ExceptionData.vb
@@ -1,62 +1,65 @@
 #Region "Microsoft.VisualBasic::204e09ebeaac170c1afe111ad2ba299c, sciBASIC#\Microsoft.VisualBasic.Core\src\ApplicationServices\Debugger\Exception\ExceptionData.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/>.
+' 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:
+' Summaries:
 
 
-    ' Code Statistics:
+' Code Statistics:
 
-    '   Total Lines: 82
-    '    Code Lines: 59
-    ' Comment Lines: 12
-    '   Blank Lines: 11
-    '     File Size: 3.05 KB
+'   Total Lines: 82
+'    Code Lines: 59
+' Comment Lines: 12
+'   Blank Lines: 11
+'     File Size: 3.05 KB
 
 
-    '     Class ExceptionData
-    ' 
-    '         Properties: Message, Source, StackTrace, TypeFullName
-    ' 
-    '         Function: CreateFromObject, CreateInstance, Exception, GetCurrentStackTrace, getMessages
-    '                   ParseStackTrace, ToString
-    ' 
-    ' 
-    ' /********************************************************************************/
+'     Class ExceptionData
+' 
+'         Properties: Message, Source, StackTrace, TypeFullName
+' 
+'         Function: CreateFromObject, CreateInstance, Exception, GetCurrentStackTrace, getMessages
+'                   ParseStackTrace, ToString
+' 
+' 
+' /********************************************************************************/
 
 #End Region
 
+Imports System.Runtime.InteropServices
 Imports Microsoft.VisualBasic.Text
 
 Namespace ApplicationServices.Debugging.Diagnostics
 
+    <ClassInterface(ClassInterfaceType.AutoDual)>
+    <ComVisible(True)>
     Public Class ExceptionData
 
         Public Property TypeFullName As String
@@ -68,6 +71,9 @@ Namespace ApplicationServices.Debugging.Diagnostics
         Public Property Source As String
         Public Property StackTrace As StackFrame()
 
+        Sub New()
+        End Sub
+
         ''' <summary>
         ''' Create exception object for throw exception expression
         ''' </summary>
diff --git a/src/ApplicationServices/Debugger/Exception/MethodFrame.vb b/src/ApplicationServices/Debugger/Exception/MethodFrame.vb
index fd21d174..3eed6a84 100644
--- a/src/ApplicationServices/Debugger/Exception/MethodFrame.vb
+++ b/src/ApplicationServices/Debugger/Exception/MethodFrame.vb
@@ -1,60 +1,64 @@
 #Region "Microsoft.VisualBasic::4be2c6aed1bae45a0ef0d6f229ed811e, sciBASIC#\Microsoft.VisualBasic.Core\src\ApplicationServices\Debugger\Exception\MethodFrame.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/>.
+' 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:
+' Summaries:
 
 
-    ' Code Statistics:
+' Code Statistics:
 
-    '   Total Lines: 24
-    '    Code Lines: 18
-    ' Comment Lines: 0
-    '   Blank Lines: 6
-    '     File Size: 628 B
+'   Total Lines: 24
+'    Code Lines: 18
+' Comment Lines: 0
+'   Blank Lines: 6
+'     File Size: 628 B
 
 
-    '     Class Method
-    ' 
-    '         Properties: [Module], [Namespace], Method
-    ' 
-    '         Constructor: (+2 Overloads) Sub New
-    '         Function: ToString
-    ' 
-    ' 
-    ' /********************************************************************************/
+'     Class Method
+' 
+'         Properties: [Module], [Namespace], Method
+' 
+'         Constructor: (+2 Overloads) Sub New
+'         Function: ToString
+' 
+' 
+' /********************************************************************************/
 
 #End Region
 
+Imports System.Runtime.InteropServices
+
 Namespace ApplicationServices.Debugging.Diagnostics
 
+    <ClassInterface(ClassInterfaceType.AutoDual)>
+    <ComVisible(True)>
     Public Class Method
 
         Public Property [Namespace] As String
diff --git a/src/ApplicationServices/Debugger/Exception/StackFrame.vb b/src/ApplicationServices/Debugger/Exception/StackFrame.vb
index 361c91d2..cd1a2ca5 100644
--- a/src/ApplicationServices/Debugger/Exception/StackFrame.vb
+++ b/src/ApplicationServices/Debugger/Exception/StackFrame.vb
@@ -1,58 +1,59 @@
 #Region "Microsoft.VisualBasic::b1dcca44b61f51f96039a76ff90db4fa, sciBASIC#\Microsoft.VisualBasic.Core\src\ApplicationServices\Debugger\Exception\StackFrame.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/>.
+' 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:
+' Summaries:
 
 
-    ' Code Statistics:
+' Code Statistics:
 
-    '   Total Lines: 95
-    '    Code Lines: 62
-    ' Comment Lines: 21
-    '   Blank Lines: 12
-    '     File Size: 3.10 KB
+'   Total Lines: 95
+'    Code Lines: 62
+' Comment Lines: 21
+'   Blank Lines: 12
+'     File Size: 3.10 KB
 
 
-    '     Class StackFrame
-    ' 
-    '         Properties: File, Line, Method
-    ' 
-    '         Constructor: (+2 Overloads) Sub New
-    '         Function: FromUnknownLocation, Parser, parserImpl, ToString
-    ' 
-    ' 
-    ' /********************************************************************************/
+'     Class StackFrame
+' 
+'         Properties: File, Line, Method
+' 
+'         Constructor: (+2 Overloads) Sub New
+'         Function: FromUnknownLocation, Parser, parserImpl, ToString
+' 
+' 
+' /********************************************************************************/
 
 #End Region
 
+Imports System.Runtime.InteropServices
 Imports Microsoft.VisualBasic.Linq
 
 Namespace ApplicationServices.Debugging.Diagnostics
@@ -61,6 +62,9 @@ Namespace ApplicationServices.Debugging.Diagnostics
     ''' Contains the necessary function calls information, source
     ''' file location information for traceback the runtime error
     ''' </summary>
+    ''' 
+    <ClassInterface(ClassInterfaceType.AutoDual)>
+    <ComVisible(True)>
     Public Class StackFrame
 
         ''' <summary>
diff --git a/src/ComponentModel/Settings/ConfigEngine.vb b/src/ComponentModel/Settings/ConfigEngine.vb
index ef741a63..85ef3afb 100644
--- a/src/ComponentModel/Settings/ConfigEngine.vb
+++ b/src/ComponentModel/Settings/ConfigEngine.vb
@@ -307,9 +307,22 @@ Namespace ComponentModel.Settings
             Return profilesData.FilePath
         End Function
 
+        ''' <summary>
+        ''' save the settings data in xml file format
+        ''' </summary>
+        ''' <param name="FilePath"></param>
+        ''' <param name="Encoding"></param>
+        ''' <returns></returns>
         <ExportAPI("Save")>
         Public Function Save(FilePath$, Encoding As Encoding) As Boolean Implements ISaveHandle.Save
-            Dim Xml As String = profilesData.GetXml
+            ' 20221022
+            '
+            ' due to the reason of profilesData object is 
+            ' an interface, then getxml on this interface 
+            ' will throw exceptions, change the getxml extension
+            ' to the object general function to fix 
+            ' this error
+            Dim xml As String = XmlExtensions.GetXml(profilesData, profilesData.GetType(), throwEx:=False)
             Return Xml.SaveTo(FilePath Or Me.FilePath.When(FilePath.StringEmpty), Encoding)
         End Function