Hi there

Can I implement web storage event handlers in .NET? Are there examples
somewhere? C#?
I can't see which interface to implement in the
Microsoft.Exchange.Transport.EventWrappers.dll which I have compiled
from the Exchange SDK. Or I'm a just blind? ;-)
If not, are there somewhere C++ examples?

Regards,
Stephan Bachofen

Those wrappers are for SMTP event sinks for store sinks have a look at
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wss/wss/_esdk_building_managed_event_sink_dlls.asp
which details how build the interops required.

Cheers
Glen

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Thank you very much for your help. I followed the instructions posted
at
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wss/wss/_esdk_building_managed_event_sink_dlls.asp
and I was able to compile my handler.

What I'm stock with is the registration:
regasm WebStoreEventSink.dll
regasm Interop.Exevtsnk.dll
regasm Interop.Exoledb.dll

Executing (as Administrator)
D:\Working>cscript RegEvent.vbs add "onsave"
WebStoreEventSink.WebStoreEventSink Handler.1
file://./backofficestorage/exchange.svr/mbx/sba/inbox/EventRegItem1 -m
deep

returns
Microsoft (R) Windows Script Host Version 5.6
Copyright (C) Microsoft Corporation 1996-2001. All rights reserved.

Error Opening Record : -2147024891 Access is denied.

The user sba exists and I can send and receive mail. What I find odd is
the fact that
D:\Working>dir \\.\backofficestorage\exchange.svr\MBX\sba
Volume in drive \\.\backofficestorage is Exchange
Volume Serial Number is 00A9-8AC7

Directory of \\.\backofficestorage\exchange.svr\MBX

22.07.2005  12:25    <DIR>          sba
              0 File(s)              0 bytes
              1 Dir(s)  10'081'816'576 bytes free
D:\Working>

folder sba has not content. I expected some Inbox folder.

Source code of my handler:
namespace WebStoreEventSink
{
   /// <summary>
   /// Summary description for Class1.
   /// </summary>
   public class WebStoreEventSinkHandler
   {
       public class AsyncEvents : ServicedComponent,
Exoledb.IExStoreAsyncEvents
       {
           public void OnDelete(Exoledb.IExStoreEventInfo pEventInfo,
string bstrURLItem, int lFlags)
           {
               // Implement OnDelete code here.
           }

           public void OnSave(Exoledb.IExStoreEventInfo pEventInfo,
string bstrURLItem, int lFlags)
           {
               {
                   EventLog myLog = new EventLog();
                   myLog.Source = "WebStoreEventSinkHandler";
                                     // Write an informational entry to
the event log.                      myLog.WriteEntry("Executing
WebStoreEventSinkHandler::OnSave -> bstrURLItem:\"" + bstrURLItem +
"\".");
               }
           }
       }
   }
}

Thank you very much for your help. I followed the instructions posted
at
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wss/wss/_esdk_building_managed_event_sink_dlls.asp
and I was able to compile my handler.

What I'm stock with is the registration:
regasm WebStoreEventSink.dll
regasm Interop.Exevtsnk.dll
regasm Interop.Exoledb.dll

Executing (as Administrator)
D:\Working>cscript RegEvent.vbs add "onsave"
WebStoreEventSink.WebStoreEventSink Handler.1
file://./backofficestorage/exchange.svr/mbx/sba/inbox/EventRegItem1 -m
deep

returns
Microsoft (R) Windows Script Host Version 5.6
Copyright (C) Microsoft Corporation 1996-2001. All rights reserved.

Error Opening Record : -2147024891 Access is denied.

The user sba exists and I can send and receive mail. What I find odd is
the fact that
D:\Working>dir \\.\backofficestorage\exchange.svr\MBX\sba
Volume in drive \\.\backofficestorage is Exchange
Volume Serial Number is 00A9-8AC7

Directory of \\.\backofficestorage\exchange.svr\MBX

22.07.2005  12:25    <DIR>          sba
              0 File(s)              0 bytes
              1 Dir(s)  10'081'816'576 bytes free
D:\Working>

folder sba has not content. I expected some Inbox folder.

Source code of my handler:
namespace WebStoreEventSink
{
   /// <summary>
   /// Summary description for Class1.
   /// </summary>
   public class WebStoreEventSinkHandler
   {
       public class AsyncEvents : ServicedComponent,
Exoledb.IExStoreAsyncEvents
       {
           public void OnDelete(Exoledb.IExStoreEventInfo pEventInfo,
string bstrURLItem, int lFlags)
           {
               // Implement OnDelete code here.
           }

           public void OnSave(Exoledb.IExStoreEventInfo pEventInfo,
string bstrURLItem, int lFlags)
           {
               {
                   EventLog myLog = new EventLog();
                   myLog.Source = "WebStoreEventSinkHandler";
                                     // Write an informational entry to
the event log.                      myLog.WriteEntry("Executing
WebStoreEventSinkHandler::OnSave -> bstrURLItem:\"" + bstrURLItem +
"\".");
               }
           }
       }
   }
}

Access denied mean access denied this is usually caused because your trying
to register the sink with a user with administrative rights. By default in
Ex2x administrator accounts are explicitly denied access to any mailbox
other then their own have a read of
http://support.microsoft.com/?­kbid=262054 which gives a solution for this.

Cheers
Glen

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Thanks, that solved the problem with viewing the content of the folder.
As a result (and a step forward) registering the handler started to
fail for a different reason:
Error -2141913011 Event Registration
Failure: The specified event sink (ProgID: %1) is not allowed to run
in-proc.

I was able to work around that error by registering the com component
differently as explained here:
http://www.devnewsgroups.net/group/microsoft.public.exchange.development/topic13489.aspx
Basically, it is about using regsvsc instead of the Component Services
admin tool.

My very basic handler mentioned earlier in this thread works fine now.
Although, my efforts making the handler slightly more interesting were
punished immediately: The handler below seems not to fire. I can't even
see the event recorded before calling the iMessage.DataSource.Open
method. I believe that method is the culprit.

using System;
using System.Diagnostics;
using System.Reflection;
using Exoledb = Interop.Exoledb;
using ExevtsnkLib = Interop.Exevtsnk;
using System.EnterpriseServices;
using CDO;
using ADODB;

namespace WebStoreEventSink
{
    /// <summary>
    /// Summary description for Class1.
    /// </summary>
    public class WebStoreEventSinkHandler
    {
        public class AsyncEvents : ServicedComponent,
Exoledb.IExStoreAsyncEvents
        {
            public void OnDelete(Exoledb.IExStoreEventInfo pEventInfo, string
bstrURLItem, int lFlags)
            {
                // Implement OnDelete code here.
            }

            public void OnSave(Exoledb.IExStoreEventInfo pEventInfo, string
bstrURLItem, int lFlags)
            {
                try
                {
                    WriteToLog("Executing WebStoreEventSinkHandler::OnSave ->
bstrURLItem:\"" + bstrURLItem + "\". Jus't been called. Lets see if I
can save the mail ...");

                    String fileName= null;
                    if(System.Convert.ToBoolean(lFlags))
                    {
                        CDO.Message iMessage=new
                            CDO.MessageClass();

                        iMessage.DataSource.Open(bstrURLItem,null,
                            ADODB.ConnectModeEnum.adModeRead,
                            ADODB.RecordCreateOptionsEnum.adFailIfNotExists,
                            ADODB.RecordOpenOptionsEnum.adOpenSource,"","");
                        fileName= "D:\\Temp\\" + "ExchangeMail" + DateTime.Now.Ticks;
                        // iMessage.GetStream().SaveToFile("D:\\Temp\\" + "ExchangeMail"
+ DateTime.Now.Ticks +
".eml",ADODB.SaveOptionsEnum.adSaveCreateNotExist);

                        WriteToLog("Executing WebStoreEventSinkHandler::OnSave ->
bstrURLItem:\"" + bstrURLItem + "\". Saved to file " + fileName);
                    }
                }
                catch (Exception e)
                {
                    WriteToLog("Executing WebStoreEventSinkHandler::OnSave -> failed.
Caught exception: " + e.Message);
                    throw e;
                }
            }

            void WriteToLog(String msg)
            {
                EventLog myLog = new EventLog();
                myLog.Source = "WebStoreEventSinkHandler";

                // Write an informational entry to the event log.
                myLog.WriteEntry(msg);
            }
        }
    }
}

Solved it. Didn't had the ADODB.dll registered on the server. Is it too
much to ask that this should have been logged by Windows????

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