Could the file not get created because you only have partial trust, even with OOB?

>Hi
>
>I am posting this here because there is no other appropriate category here.
>
>I was testing out Silverlight Capability with COM , specifically the examples shown here:
>http://justinangel.net/CuttingEdgeSilverlight4ComFeatures
>
>Although these samples are nor fully correct because of the changes to SL4, I have corrected them (COMAutomatoionFactory is now
>AutomationFactory) and in my installation of VS2010 Express the first sample for writing a text file using the FSO works in the IDE in
>Debug mode.
>
>This is the code for the MainPage.xaml
>

>using System;
>using System.Collections.Generic;
>using System.Linq;
>using System.Net;
>using System.Windows;
>using System.Windows.Controls;
>using System.Windows.Documents;
>using System.Windows.Input;
>using System.Windows.Media;
>using System.Windows.Media.Animation;
>using System.Windows.Shapes;
>using System.Runtime.InteropServices.Automation;
>
>namespace SL4Com
>{
>    public partial class MainPage : UserControl
>    {
>        public MainPage()
>        {
>            InitializeComponent();
>        }
>
>        private void btnInstall_Click(object sender, RoutedEventArgs e)
>        {
>            if (Application.Current.InstallState == InstallState.NotInstalled)
>                Application.Current.Install();
>        }
>
>        private void btnWriteFile_Click(object sender, RoutedEventArgs e)
>        {
>            using (dynamic fsoCom = AutomationFactory.CreateObject("Scripting.FileSystemObject"))
>            {
>                dynamic file = fsoCom.CreateTextFile(@"c:\test.txt", true);
>                file.WriteLine("Bloody Hell");
>                file.WriteLine("Silverlight 4");
>                file.Close();
>
>            }
>        }
>    }
>}
>
>

>This sample is a simple Out-of-Browser example and in the VS2010 Express IDE it works , a OOB window appears and the file is generated when the button is clicked.
>
>However I am unable to get this to run in any way outside the VS2010 IDE. There are a number of files generated on build:
>AppMainfest.xaml
>Microsoft.CSharp.dll
> Microsoft.CSharp.xml
>SL4COM.dll
>SL4Com.pdb
>SL4Com.xap
>SL4ComTestPage.html.
>
>and some other language folders(de, es, fr etc.)
>
>Dbl. Clicking on the last 2 files (.xap and .html) opens a browser with the button displayed. No OOB here, but a button in the browser.
>
>Q1 Why no OOB and how do I get it to display an OOB Window?
>
>Clicking the button gives this error:
>

>Webpage error details
>
>User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E)
>Timestamp: Tue, 24 Aug 2010 01:37:42 UTC
>
>Message: Unhandled Error in Silverlight Application This operation is not supported in the current context.   at MS.Internal.Error.MarshalXresultAsException(UInt32 hr, COMExceptionBehavior comExceptionBehavior)
>   at MS.Internal.XcpImports.CheckHResult(UInt32 hr)
>   at MS.Internal.ComAutomation.ComAutomationNative.CreateObject(String progID, IntPtr& nativeObject)
>   at MS.Internal.ComAutomation.ComAutomationServices.CreateObject(String progID, ComAutomationParamWrapService paramWrapService)
>   at System.Runtime.InteropServices.Automation.AutomationFactory.CreateObject(String progID)
>   at SL4Com.MainPage.btnWriteFile_Click(Object sender, RoutedEventArgs e)
>   at System.Windows.Controls.Primitives.ButtonBase.OnClick()
>   at System.Windows.Controls.Button.OnClick()
>   at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
>   at System.Windows.Controls.Control.OnMouseLeftButtonUp(Control ctrl, EventArgs e)
>   at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, String eventName)
>Line: 1
>Char: 1
>Code: 0
>URI: file:///C:/VS2010/Silverlight/SL4Com/SL4Com/Bin/Debug/SL4ComTestPage.html
>
>

>
>Same things happen when I open the files from IIS.
>Q2 So can anyone shed some light on this? How do you actually get an OOB to work as an OOB and why is this error appearing?
>
>Thanks
>
>Bernard
>
>Update:Above problem is solved. Found this solution here:
>
>http://geekswithblogs.net/BelugaNeil/archive/2010/01/05/silverlight-4-oob-out-of-browser-application.aspx
>
>But this now leads to another problem - the text file is not created on the computer c:\text.txt like it was in the VS2010 IDE. and there is absolutely no feedback as to why this is.
>
>Now if I can only find an example of using XML data from a web service in a silverlight grid....