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  • Involving kids into programing - which language? [closed]

    - by boj
    Possible Duplicate: What are some good tools for introducing kids to programming? Long-long time ago I had a great book by Frank DaCosta about writing adventure games in Basic, it had a great influence on me. I would like to show the world of programming to my child too but I have two problems: I can not found books like DaCosta's (but we can replace it with our fantasy so not a big deal) Which programming language should I use? Small Basic?

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  • SSL authentication error: RemoteCertificateChainErrors on ASP.NET on Ubuntu

    - by Frank Krueger
    I am trying to access Gmail's SMTP service from an ASP.NET MVC site running under Mono 2.4.2.3. But I keep getting this error: System.InvalidOperationException: SSL authentication error: RemoteCertificateChainErrors at System.Net.Mail.SmtpClient.m__3 (System.Object sender, System.Security.Cryptography.X509Certificates.X509Certificate certificate, System.Security.Cryptography.X509Certificates.X509Chain chain, SslPolicyErrors sslPolicyErrors) [0x00000] at System.Net.Security.SslStream+c__AnonStorey9.m__9 (System.Security.Cryptography.X509Certificates.X509Certificate cert, System.Int32[] certErrors) [0x00000] at Mono.Security.Protocol.Tls.SslClientStream.OnRemoteCertificateValidation (System.Security.Cryptography.X509Certificates.X509Certificate certificate, System.Int32[] errors) [0x00000] at Mono.Security.Protocol.Tls.SslStreamBase.RaiseRemoteCertificateValidation (System.Security.Cryptography.X509Certificates.X509Certificate certificate, System.Int32[] errors) [0x00000] at Mono.Security.Protocol.Tls.SslClientStream.RaiseServerCertificateValidation (System.Security.Cryptography.X509Certificates.X509Certificate certificate, System.Int32[] certificateErrors) [0x00000] at Mono.Security.Protocol.Tls.Handshake.Client.TlsServerCertificate.validateCertificates (Mono.Security.X509.X509CertificateCollection certificates) [0x00000] at Mono.Security.Protocol.Tls.Handshake.Client.TlsServerCertificate.ProcessAsTls1 () [0x00000] at Mono.Security.Protocol.Tls.Handshake.HandshakeMessage.Process () [0x00000] at (wrapper remoting-invoke-with-check) Mono.Security.Protocol.Tls.Handshake.HandshakeMessage:Process () at Mono.Security.Protocol.Tls.ClientRecordProtocol.ProcessHandshakeMessage (Mono.Security.Protocol.Tls.TlsStream handMsg) [0x00000] at Mono.Security.Protocol.Tls.RecordProtocol.InternalReceiveRecordCallback (IAsyncResult asyncResult) [0x00000] I have installed certificates using: certmgr -ssl -m smtps://smtp.gmail.com:465 with this output: Mono Certificate Manager - version 2.4.2.3 Manage X.509 certificates and CRL from stores. Copyright 2002, 2003 Motus Technologies. Copyright 2004-2008 Novell. BSD licensed. X.509 Certificate v3 Issued from: C=US, O=Equifax, OU=Equifax Secure Certificate Authority Issued to: C=US, O=Google Inc, CN=Google Internet Authority Valid from: 06/08/2009 20:43:27 Valid until: 06/07/2013 19:43:27 *** WARNING: Certificate signature is INVALID *** Import this certificate into the CA store ?yes X.509 Certificate v3 Issued from: C=US, O=Google Inc, CN=Google Internet Authority Issued to: C=US, S=California, L=Mountain View, O=Google Inc, CN=smtp.gmail.com Valid from: 04/22/2010 20:02:45 Valid until: 04/22/2011 20:12:45 Import this certificate into the AddressBook store ?yes 2 certificates added to the stores. In fact, this worked for a month but mysteriously stopped working on May 5. I installed these new certs today, but I am still getting these errors.

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  • Why doesn't my NamedPipeServerStream wait??

    - by Frank Fella
    I'm working with a NamedPipeServerStream to communicate between two processes. Here is the code where I initialize and connect the pipe: void Foo(IHasData objectProvider) { Stream stream = objectProvider.GetData(); if (stream.Length > 0) { using (NamedPipeServerStream pipeServer = new NamedPipeServerStream("VisualizerPipe", PipeDirection.Out, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous)) { string currentDirectory = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location); string uiFileName = Path.Combine(currentDirectory, "VisualizerUIApplication.exe"); Process.Start(uiFileName); if(pipeServer.BeginWaitForConnection(PipeConnected, this).AsyncWaitHandle.WaitOne(5000)) { while (stream.CanRead) { pipeServer.WriteByte((byte)stream.ReadByte()); } } else { throw new TimeoutException("Pipe connection to UI process timed out."); } } } } private void PipeConnected(IAsyncResult e) { } But it never seems to wait. I constantly get the following exception: System.InvalidOperationException: Pipe hasn't been connected yet. at System.IO.Pipes.PipeStream.CheckWriteOperations() at System.IO.Pipes.PipeStream.WriteByte(Byte value) at PeachesObjectVisualizer.Visualizer.Show(IDialogVisualizerService windowService, IVisualizerObjectProvider objectProvider) I would think that after the wait returns everything should be ready to go. If I use pipeServer.WaitForConnection() everything works fine, but hanging the application if the pipe doesn't connect is not an option.

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  • Any other preprocessor directives in VBScript/Classic ASP?

    - by Frank
    The only pre-process directive that I know about in VBScript / Classic ASP is the #include. I don't know if that is the official name but I'm basically looking for code that can execute code or other instructions before the general VBScript. Are there any other such directives in VBScript? Such as #If or something? I'd like to be able to conditionally include or exclude a certain include file.

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  • Oracle & Active Directory : A love/hate relationship

    - by Frank
    Hi SO'ers, I'm currently trying to access Active Directory via the dbms_ldap API in Pl/Sql (Oracle). The trouble is that I'm not able to connect with my own username and password or anynoymously. However, in C# I can connect anonymously with this code : DirectoryEntry ldap = new DirectoryEntry("LDAP://Hostname"); DirectorySearcher searcher = new DirectorySearcher(ldap); searcher.Filter = "(SAMAccountName=username)"; SearchResult result = searcher.FindOne(); If I try to connect anonymously in Oracle, I only get the error(ORA-31202 : LDAP client/server error) when I try to search (and the result code for the bind is SUCCESS)... my_session := dbms_ldap.init('HOST','389'); retval := dbms_ldap.simple_bind_s(my_session, '', ''); retval := dbms_ldap.search_s(my_session, ldap_base, dbms_ldap.scope_subtree, 'objectclass=*', my_attrs, 0, my_message); Why is the anonymous connection is C# works but doesn't work in Pl/Sql? Do you have any other idea to connect to Active Directory via Oracle? Help me reunite them together. Thanks. Edit When I bind with anonymous credentials I get : ORA-31202: DBMS_LDAP: LDAP client/server error 00000000: LdapErr: DSID-0C090627, comment: In order to perform this operation a successful bind must be completed on the connection And if I try to connect with my credentials, which are supposed to be valid since I'm connected to the domain with it... I get : ORA-31202: DBMS_LDAP: LDAP client/server error Invalid credentials 80090308: LdapErr: DSID-0C090334, comment: AcceptSecurityContext error

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  • ArcGis and GeoCortex

    - by Frank
    Hi, we are tying to set-up GeoCortex with our ArcGis server but can't seem to get it right. We do see some of the requests that have been made to the application, but we don't have a lot of details about it, only the number of image requested, I was wondering if you guys had any problem with this (if you ever tried it) and if I could get a checklist of things to look for. Thanks p.s.: I know that this is a very precise subject, any help will be appreciated.

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  • Overwriting the content from one MOSS content database to another

    - by 78lro
    We have a content database on our live moss server. It contains one site collection with several sub-sites. I'm using the stsadm export command to produce a cmp file, then moving this to our test server in a different farm. I then want to import this content into the content database on our test farm, using the import stsadm command results in me being left with all the existing test data as well as the live data. I tried detaching the existing content database from test in central admin and creating a new empty one,to the then run the import against that but the import failed as obviously there's not root site in the empty db. The aim is to have the data on test look like live, clearing out all the test data. Can anyone suggest a good approach to this type of problem?

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  • In the context of the TFS version control SDK (Microsoft.TeamFoundation.VersionControl), what exactl

    - by Frank Schwieterman
    In the context of the TFS version control SDK (Microsoft.TeamFoundation.VersionControl), what exactly is deletionID? It is a property of Microsoft.TeamFoundation.VersionControl.Client.Item. It is also a parameter to some of the query methods on Microsoft.TeamFoundation.VersionControl.Client. I'm trying to figure out exactly what it means, and how it might impact queries.

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  • PyQt4 Custom Widgets

    - by Frank E.
    Are there any good PyQt4 custom widgets like at Qt-Apps.org? I would like to start making PyQt custom widgets but online resources that I find don't seem to be clear For example, Trolltech's and Zetcode's don't seem to be related in any way at all. Thanks for any input :)

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  • How do I use a datetime variable with createparameter in classic ASP?

    - by Frank Schmitt
    I'm having a heck of a time trying to create a parameterized query that binds a date variable into a stored procedure call: twoyearsago = dateadd("yyyy", -2, date()) DataConn.ConnectionString = myConnectionString DataConn.Open Set rs = Server.CreateObject("ADODB.Recordset") Set DataCmd = Server.CreateObject("ADODB.Command") DataCmd.ActiveConnection = DataConn DataCmd.CommandText = "exec myStoredProc ?, ?" DataCmd.Parameters.Append DataCmd.CreateParameter("@start", adDate, , 10, date()) DataCmd.Parameters.Append DataCmd.CreateParameter("@end", adDate, , 10, twoyearsago) rs.Open DataCmd The stored proc returns nothing (indicating the dates aren't making it through). If I hard code dates in the query, e.g.: DataCmd.CommandText = "exec myStoredProc '01/01/2008', '01/01/2010'" I get the results I would expect. Calling CStr on my dates (if that makes a difference) returns them in the above format.

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  • Why a Swing app stops my Java servlet ?

    - by Frank
    I have a Swing runnable app which updates messages, then I have a Java servlet that gets messages from Paypal IPN (Instant Payment Notification), when the servlet starts up, in the init(), I starts the Swing runnable app which opens a desktop window, but 30 minutes later an error in the Swing caused the servlet to stop, how can that happen ? Because the runnable is running on it's own thread, servlet started that thread, why an error in that thread will cause the servlet to stop ? public class License_Manager extends JPanel implements Runnable { License_Manager() { Do_GUI(); ... start(); } public static void main(String[] args) { // Schedule a job for the event-dispatching thread : creating and showing this application's GUI. javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { Create_And_Show_GUI(); } }); } } public class PayPal_Servlet extends HttpServlet { public void init(ServletConfig config) throws ServletException { super.init(config); License_Manager.main(null); } protected void processRequest(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException { } } And besides the error don't even have anything to do with my code, it looks like this : Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 17 = 0 at java.util.Vector.elementAt(Vector.java:427) at javax.swing.DefaultListModel.getElementAt(DefaultListModel.java:70) at javax.swing.plaf.basic.BasicListUI.paintCell(BasicListUI.java:191) at javax.swing.plaf.basic.BasicListUI.paintImpl(BasicListUI.java:304) at javax.swing.plaf.basic.BasicListUI.paint(BasicListUI.java:227) at javax.swing.plaf.ComponentUI.update(ComponentUI.java:143) at javax.swing.JComponent.paintComponent(JComponent.java:763) at javax.swing.JComponent.paint(JComponent.java:1029) at javax.swing.JComponent.paintChildren(JComponent.java:864) at javax.swing.JComponent.paint(JComponent.java:1038) at javax.swing.JViewport.paint(JViewport.java:747) at javax.swing.JComponent.paintChildren(JComponent.java:864) at javax.swing.JComponent.paint(JComponent.java:1038) at javax.swing.JComponent.paintToOffscreen(JComponent.java:5124) at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:278) at javax.swing.RepaintManager.paint(RepaintManager.java:1220) at javax.swing.JComponent._paintImmediately(JComponent.java:5072) at javax.swing.JComponent.paintImmediately(JComponent.java:4882) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:803) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714) at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:694) at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

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  • Flex 3 : UIComponent.addChild issue

    - by Frank
    Hello SOers, I've run into a nice problem with the UIComponent.addChild(...) function. First of all, I'm using ESRI Api for Flex. In this API you find a class called Graphic that inherits UIComponent. Basically, I'm trying to add, as a child, a Graphic 'g' to another graphic 'parent'. So that when you delete the 'parent' graphic the 'g' graphic deletes as well. private function writeMeasurements(parent:Graphic):void { var g:Graphic; if(parent.geometry.extent != null) g = new Graphic(parent.geometry.extent.center); else g = new Graphic(parent.geometry); g.initialize(); g.name = UIDUtil.createUID(); g.symbol = txtSym; graphicsLayer.add(g); parent.addChild(g); } graphicsLayer class This code actually runs pretty fine. The problem is after... it's like if the addChild function was asynchronious. This is the error I get : TypeError: Error #1009: Il est impossible d'accéder à la propriété ou à la méthode d'une référence d'objet nul. at com.esri.ags::Graphic/updateDisplayList()[C:\checkout\flex_api\api\src\com\esri\ags\Graphic.as:346] at mx.core::UIComponent/validateDisplayList() at mx.managers::LayoutManager/validateDisplayList() at mx.managers::LayoutManager/doPhasedInstantiation() at Function/http://adobe.com/AS3/2006/builtin::apply() at mx.core::UIComponent/callLaterDispatcher2() at mx.core::UIComponent/callLaterDispatcher() I know this is a very specific question, but I think you guys are the BEST! Thanks.

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  • How to use a derived ControlTemplate in WPF

    - by Frank Fella
    The following xaml code works: <Window x:Class="DerivedTemplateBug.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:DerivedTemplateBug" Title="Window1" Height="300" Width="300"> <Button> <Button.Template> <ControlTemplate> <Border BorderBrush="Black" BorderThickness="2"> <TextBlock>Testing!</TextBlock> </Border> </ControlTemplate> </Button.Template> </Button> </Window> Now, if you define the following data template: using System.Windows.Controls; namespace DerivedTemplateBug { public class DerivedTemplate : ControlTemplate { } } And then swap the ControlTemplate for the derived class: <Window x:Class="DerivedTemplateBug.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:DerivedTemplateBug" Title="Window1" Height="300" Width="300"> <Button> <Button.Template> <local:DerivedTemplate> <Border BorderBrush="Black" BorderThickness="2"> <TextBlock>Testing!</TextBlock> </Border> </local:DerivedTemplate> </Button.Template> </Button> </Window> You get the following error: Invalid ContentPropertyAttribute on type 'DerivedTemplateBug.DerivedTemplate', property 'Content' not found. Can anyone tell my why this is the case?

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  • How to show quicktime videos in succession

    - by Eric Frank
    How do I have two or more quicktime videos to play one after the other, with no action taken by the user? I've seen an example of the technique here: http://untitled.wiredrive.com//l/p/?presentation=7c79bedbb8b02d2b1da45b033cc20345 I can't seem to boil down their code to the good stuff. Thanks!

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  • JQGRID inline dropdown binding via AJAX

    - by Frank
    jQuery(document).ready(function () { var grid = $("#list"); var AllCategory={"1":"Computing","2":"Cooking","10":"Fiction","3":"Finance","6":"Language","4":"Medical","11":"News","8":"Philosophy","9":"Religion","7":"Sport","5":"Travel"}; grid.jqGrid({ url: '/SupplierOrder/Select_SupplierOrderDetailByX/', editurl: "clientArray", datatype: 'json', mtype: 'GET', colNames: ['Category', 'Qty'], colModel: [ { name: 'Category', index: 'CategoryID', align: 'left', editable: true, edittype: "select", formatter: 'select', editoptions: { value: AllCategory }, editrules: { required: true } }, { name: 'Qty', index: 'Qty', width: 40, align: 'left', editable: true, edittype: "text", editoptions: { size: "35", maxlength: "50"} } ], pager: jQuery('#pager'), rowNum: 10, rowList: [5, 10, 20, 50], sortname: '', sortorder: '', viewrecords: true, autowidth: true, autoheight: true, imgpath: '/scripts/themes/black-tie/images', caption: 'Supplier Order Detail' }) grid.jqGrid('navGrid', '#pager', { edit: false, add: false, del: true, refresh: false, search: false }, {}, {}, {}, {}); grid.jqGrid('inlineNav', '#pager', { addtext: "Add", edittext: "Edit", savetext: "Save", canceltext: "Cancel" }); }); It is my JQGrid. Then, I remove below code ... var AllCategory={"1":"Computing","2":"Cooking","10":"Fiction","3":"Finance","6":"Language","4":"Medical","11":"News","8":"Philosophy","9":"Religion","7":"Sport","5":"Travel"}; Replace with below code so that i can get dynamic data ... var AllCategory = (function () { var list = null; $.ajax({ async: false, global: false, type: "POST", url: 'Category_Lookup', dataType: 'json', data: {}, success: function (response, textStatus, jqXHR) { list = response; }, error: function (jqXHR, textStatus, errorThrown) { alert("jqXHR.responseText --> " + jqXHR.responseText + "\njqXHR --> " + jqXHR + "\ntextStatus --> " + textStatus + " \nerrorThrown --> " + errorThrown); } }); alert(list); return list; })(); Firstly, I get below message box ... Then I get Error Could anyone please tell me how to make it correct ? Every suggestion will be appreciated.

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  • Users Login Info in INFORMIX-SQL

    - by Frank Developer
    INFORMIX-SQL 4.1 - There's this ASCII UNIX file called "passwd" in /usr/informix/etc which holds all the user id's and encrypted passwords to log into ISQL. Is there a system catalog table which holds the logged in users? I see a SYSUSERS.DAT file but when I queried it, it didnt show my login id, date or time.

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  • Using HtmlAnchor for anchor tag that navigates in-page named anchor

    - by Frank Schwieterman
    I am trying to render a simple hyperlink that links to a named anchor within the page, for example: <a href="#namedAnchor"scroll to down</a <a name="namedAnchor"down</a The problem is that when I use an ASP.NET control like asp:HyperLink or HtmlAnchor, the href="#namedAnchor" is rendered as href="controls/#namedAnchor" (where controls is the subdirectory where the user control containing the anchor is). Here is the code for the control, using two types of anchor controls, which both have the same problem: <%@ Control Language="C#" AutoEventWireup="true" CodeBehind="Test.ascx.cs" Inherits="TestWebApplication1.controls.Test" % <a href="#namedAnchor" runat="server"HtmlAnchor</a <asp:HyperLink NavigateUrl="#namedAnchor" runat="server"HyperLink</asp:HyperLink The generated source looks like: <a href="controls/#namedAnchor"HtmlAnchor</a <a href="controls/#namedAnchor"HyperLink</a I really just want: <a href="#namedAnchor"HtmlAnchor</a <a href="#namedAnchor"HyperLink</a I am using the HtmlAnchor or HyperLink class because I want to make changes to other attributes in the code behind. I do not want to introduce a custom web control for this requirement, as the requirement I'm pursuing is not that important and it would be hard to talk the team into abandoning the traditional ASP.NET link controls. It seems like I should be able to use the ASP.NET link controls to generate the desired link.

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  • Call asp.net mvc Html Helper within custom html helper with expression parameter

    - by Frank Michael Kraft
    I am trying to write an html helper extension within the asp.net mvc framework. public static MvcHtmlString PlatformNumericTextBoxFor<TModel>(this HtmlHelper instance, TModel model, Expression<Func<TModel,double>> selector) where TModel : TableServiceEntity { var viewModel = new PlatformNumericTextBox(); var func = selector.Compile(); MemberExpression memExpession = (MemberExpression)selector.Body; string name = memExpession.Member.Name; var message = instance.ValidationMessageFor<TModel, double>(selector); viewModel.name = name; viewModel.value = func(model); viewModel.validationMessage = String.Empty; var result = instance.Partial(typeof(PlatformNumericTextBox).Name, viewModel); return result; } The line var message = instance.ValidationMessageFor<TModel, double>(selector); has a syntax error. But I do not understand it. The error is: Fehler 2 "System.Web.Mvc.HtmlHelper" enthält keine Definition für "ValidationMessageFor", und die Überladung der optimalen Erweiterungsmethode "System.Web.Mvc.Html.ValidationExtensions.ValidationMessageFor(System.Web.Mvc.HtmlHelper, System.Linq.Expressions.Expression)" weist einige ungültige Argumente auf. C:\Projects\WorkstreamPlatform\WorkstreamPlatform_WebRole\Extensions\PlatformHtmlHelpersExtensions.cs 97 27 WorkstreamPlatform_WebRole So according to the message, the parameter is invalid. But the method is actually declared like this: public static MvcHtmlString ValidationMessageFor<TModel, TProperty>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression); So actually it should work.

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  • 404 Error Hosting WCF Service via IIS 7.5 Shared Content

    - by Chad Gruka
    We're attempting to host a WCF Service (.NET 3.5 SP1) using Shared Content on IIS 7.5. At the moment it's returning a 404 error. My assumption at this point is that WCF can not be hosted via a UNC path (See workaroundHosting WCF service in IIS6 using UNC). Steps I've taken: - Established a FullTrust to/with the UNC path. - The service works hosting it on a local disk. - A basic HTML page renders without issue from the UNC path. - A ASPX page renders without issue from the UNC path. - Explicitly set "Full Control" permissions to the user running the service. The reason for using Shared Content in IIS 7.5 to host this WCF Service, and several other websites, in a web farm. Using Shared Content avoids the need for file replication between the nodes in the farm. (Note we are also using Shared Configuration to support this environment.)

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