QueryInterface for interface Microsoft.Windows.DesktopSearch.Query.ISearchDesktop failed.

• Gopinath M

  I finally found a solution, but I don't know if it fixes your problem Safwan. Add

  ASPCompat="true"

  to your page directive.

  It runs the page in an STA thread pool. Works fine for me apart from the lack of performance which is associated with the changes.

  Regards

  Marius

  
  

• like_antani

  I have the same problem while trying to convert the SDK-Sample to an asp-Website.

  I searched quite a lot but still found no solution.

  Source Error:
  

  Line 127: filterclaus = "Contains(PerceivedType,'" + filterclaus + "')"; Line 128: Line 129: myRecordSet = mySDObj.ExecuteQuery(query, columns, sortColumn, filterclaus); Line 130: resultTable.Clear(); Line 131: dbAdapter.Fill(resultTable, myRecordSet);

  Stack Trace:

  [InvalidCastException: QueryInterface for interface Microsoft.Windows.DesktopSearch.Query.ISearchDesktop failed.]
  Microsoft.Windows.DesktopSearch.Query.SearchDesktopClass.ExecuteQuery(String lpcwstrQuery, String lpcwstrColumn, String lpcwstrSort, String lpcwstrRestriction) +0
  Microsoft.Windows.DesktopSearch.SampleWrapper.QueryBuilder.ExecuteQuery(String query, String filterclaus) in c:\inetpub\wwwroot\desktopsearchweb\querybuilder.cs:129
  DesktopSearchWeb.DesktopSearchWeb.runQuery() in c:\inetpub\wwwroot\desktopsearchweb\desktopsearchweb.aspx.cs:96
  DesktopSearchWeb.DesktopSearchWeb.search_Click(Object sender, EventArgs e) in c:\inetpub\wwwroot\desktopsearchweb\desktopsearchweb.aspx.cs:67
  System.Web.UI.WebControls.Button.OnClick(EventArgs e)
  System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
  System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
  System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
  System.Web.UI.Page.ProcessRequestMain()

  Windows Desktop Search Version: 2.05.0001.1119

  I'm working on a local IIS. Maybe someone has a hint or bumps me on the noggin.

  
  

• mosoccer

  After adding the directive ASPCompat="true" I am getting error below. not sure where to give the access permission.

  If you have any idea pls help me.

  Whole directive is as below.

  <%@ Page Language="vb" AutoEventWireup="false" Codebehind="WebForm1.aspx.vb" Inherits="wSearch.WebForm1" ASPCompat="true"%>

  Thanks,

  -Safwan

  Server Error in '/wSearch' Application.

• Rob123qwe123

  Did you configure your Web.config

  <authentication mode="Windows"/>

  <identity impersonate="true" userName="<DOMAIN\USER>" password="XXXXXX"/>

  Maybe that will help.

  Regards

  Marius

  
  
• QueryInterface for interface Microsoft.Windows.DesktopSearch.Query.ISearchDesktop failed.