Just wanted to congratulate my buddy Marcel Meijer on becoming C# Groupleader within the SDN.

Congratulations dude!!!

I had some problems with my blog crashing my application pool. Last night I upgraded from Das Blog 1.8 to version 1.9.6264.0.

It was still up and running this morning so let's hope it helped.

Stampede Appoints MRA-Group as an International Partner for Stampede's Web Acceleration Solutions.

Read more: http://www.stampede.com/press-release-dec-5-2006.html

In the category: 'interesting numbers', I just ran across this info-bit on the Citrix website:

With industry analysts expecting the WAN optimization market to double to more than $1.2 billion by 2009⁽¹⁾, and an estimated 55 percent of all employees worldwide accessing their applications from branch offices, WAN optimization solutions are rapidly becoming a critical infrastructure requirement for enterprises around the world.

1) Gartner Dataquest: Forecast: Application Acceleration Equipment, Worldwide, 2005-2010, Aug. 10, 2006, Joe Skorupa.

 

Will my application run on Windows Vista? The 'Application Compatibility Cookbook' does make any guarantees, but following the guidelines will surely help.

Go to: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnlong/html/AppComp.asp

Microsoft MSDN has published a white paper on software factories written by my friend Marcel de Vries. He worked together with Jack Greenfield, pretty cool!

This white paper discusses how software factories and Microsoft Visual Studio Team System can be used together to improve quality, predictability, and productivity. Using Visual Studio Team System data-warehouse and reporting capabilities, the software-factory builder can reliably determine which aspects of product development need improvement and how to modify the software factory to improve them.

This white paper concludes that greater quality, predictability, and productivity can be achieved with a software-factory approach, rather than with traditional one-off development. The concepts and working methods are targeted at an audience of systems integrators and enterprise customers who develop custom software.

Read the paper at: http://msdn2.microsoft.com/en-us/library/aa925157.aspx

Good design, smart data access and optimizing the results of your web service are good way to improve performance of your web service. In an earlier post I also mentioned turning off XML schema validation. As it turn out, this may not be necessary.

A company called Stampede offers a solution for improving Web Service perfomance by offloading XML schema validation!!!

The product is actually much more comprehensive than that, read below a copy from an interesting piece of text from their website.

SOA Optimization Services

The Stampede Web 2.0 Performance Series also addresses the demands placed on the network and Web servers as a result of the proliferation of XML data and Service Oriented Architecture applications.  Stampede's client and appliance technology are now XML-aware, and add services specifically designed to optimize this environment.

• XML Document Differencing extends our Cache Differencing technology to only transmit the actual changes in the XML document; significantly reducing the data that is transmitted
  
• XML Schema Validation to validate the grammar of the XML message, and ensure the message does not contain unexpected or potentially malicious content
  
• XML Content Based Routing enables routing decisions to be made based on a dynamic analysis of the XML document

XML Threat Management Services

The transaction intensive demands of Web Services, AJAX and other XML applications require bullet-proof security.  XML applications are vulnerable to maliciously corrupted data, denial of service (DoS) attacks, and intrusion attempts.  The Stampede Web 2.0 Performance Series provides hardened security features to address these issues.

• XML Content Inspection uses parallel hardware to do symantec threat analysis on the entire XML message
• XML Well-formedness Checking protects the host environment against non-malicious message corruption
• XML Denial of Service (XDoS) Detection provides detection of specific XML parser attacks
• Message Anomaly Detection provides adjustable tolerance levels for recognition of message traffic patterns and identification of packet anomalies

The session schedule for the next SDN meeting, on the 11th of december is available (www.sdn.nl). We have a great line up!

Overzicht sprekers en sessies

	Delphi	C#	Visual Basic.NET	DotNetNuke	St. dotNed	Visual Objects
8:30	Registratie / Ontvangst
9:00	Delphi Roadmap: Look into the future Nick Hodges & Gerard vd Pol	Programmeren met Project 2007 Marianne van Wanrooij	Software development in extreem tempo met UML, MDA en .NET Sander Hoogendoorn	Intrduction to DotNetNuke Erik van Ballegoij	What's new in .NET 3.0? Thomas Huijer	Dialogs and windows without using the GUI libraries Frans de Wit
10:15	Pauze - 30 min.
10:45	ECO III - Basics Holger Flick	Windows Cardspaces en Claim Based authorisatie met WCF Erik van de Ven	Hoe indexen een SQL Server database kunnen versnellen Hugo Kornelis	DotNetNuke and Ajax Stefan Kamphuis	More on Cardspace Sander Gerz	Visual Objects vs Vulcan.NET Chris Pyrgas
12:00	Lunch - 60 min.
13:00	NDA sessie over Delphi Highlander Nick Hodges & Bob Swart	Robotica for fun and profit Mark Rexwinkel	Visual Studio Code Name ‘Orcas’ Serge van Schie	User, profile and role management and subscription-based websites with DotNetNuke Peter Schotman	More on WCF Dennis Vroegop	Utilizing Design Patterns with VO and Vulcan.NET (part 1) Meinhard Schnoor-Matriciani
14:15	Pauze - 15 min.
14:30	What's new in Interbase 2007 Henrik Jondell	Next-Generation Data Access with ADO.NET vNext Paul Gielens	CLR User-defined types in SQL Server 2005 Hugo Kornelis	Intermodule Communication Leigh Pointer	More on WPF Waseem Sadiq	Utilizing Design Patterns with VO and Vulcan.NET (part 2) Meinhard Schnoor-Matriciani
15:45	Pauze - 30 min.
16:15	ECO III with ASP.NET: Authentication and Authorization Holger Flick	WCF Service Model Internals & Extensibility Gijs de Jong	Workflow Foundation what is hot, what is not Maurice de Beijer	Designing UI for modules and integration with skinning Sebastian Leupold	Panel discussie: Alles over .NET 3.0 en waarom je je daar mee bezig moet houden dotNed panel	Using VO GUI classes and .Net Forms together Chris Pyrgas
17:30	Einde

My friends, Klaas and Hans, pointed out that there is a neat tool for viewing queues, contracts, types etc. in SQL Server 2005. It's called SSBAdmin and is written by Niels from DevelopMentor. Go to http://sqljunkies.com/WebLog/nielsb/archive/2005/12/27/17701.aspx to download the tool.

I have the pleasure of being part of project which has started using Visual Studio Team Suite and Team Foundation Server.

I love the smooth integration of source control and issue management. It's fantastic, no more buggy add-ins! Perhaps coolest of all is the ability to move files and retain version history. No more crazy work-arounds.

The Dutch launch for Windows Vista, Office 2007 and Exchange 2007 is scheduled for the 28th of November 2006.

Read more on: http://www.microsoft.com/netherlands/evenementen/klaarvoorhetnieuwewerken/default.aspx (in Dutch)

Here is the sample SQL script to create a simple queue in SQL Server 2005:

-- Needed to send messages!
CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'MyPassword';
GO

-- All messages need to be typed.
CREATE MESSAGE TYPE
[//DEVELOP-ONE.COM/schemas/Test/XmlMessage]
VALIDATION = VALID_XML;
GO

-- Create a contract
CREATE CONTRACT
[//DEVELOP-ONE.COM/schemas/Test/BasicXmlQueueContract]
( [//DEVELOP-ONE.COM/schemas/Test/XmlMessage]
SENT BY ANY
) ;
GO

-- Create a queue which is turned on and which retains
-- messages in the database.
CREATE QUEUE BasicXmlQueue
WITH STATUS=ON, RETENTION=ON;
GO

-- Create the service needed to send messages.
CREATE SERVICE [//DEVELOP-ONE.COM/Sql/Services/Test/BasicXmlService]
ON QUEUE [dbo].[BasicXmlQueue]
([//DEVELOP-ONE.COM/schemas/Test/BasicXmlQueueContract]) ;
GO

-- Create a stored procedure to send a message
CREATE PROCEDURE SendXMLMessage
@MessageContent XML
AS
BEGIN

DECLARE @dialog_handle UNIQUEIDENTIFIER;

BEGIN DIALOG CONVERSATION @dialog_handle
FROM SERVICE [//DEVELOP-ONE.COM/Sql/Services/Test/BasicXmlService]
TO SERVICE '//DEVELOP-ONE.COM/Sql/Services/Test/BasicXmlService'
ON CONTRACT [//DEVELOP-ONE.COM/schemas/Test/BasicXmlQueueContract] ;


SEND ON CONVERSATION @dialog_handle
MESSAGE TYPE [//DEVELOP-ONE.COM/schemas/Test/XmlMessage]
(@MessageContent) ;

-- return dialog_handle
SELECT @dialog_handle ;

END ;
GO

CREATE PROCEDURE ReceiveXMLMessage
@Timeout int
AS
BEGIN
DECLARE @tempTable as TABLE(
conversation_handle UNIQUEIDENTIFIER,
message_body XML) ;

WAITFOR( RECEIVE TOP (1)
conversation_handle,
message_body
FROM BasicXmlQueue
INTO @tempTable ), TIMEOUT @Timeout;

DECLARE @conversation_handle as UNIQUEIDENTIFIER;

SELECT TOP (1) @conversation_handle = conversation_handle
FROM @tempTable ;

IF ( @conversation_handle IS NOT NULL )
BEGIN
-- remove message from queue without sending an End Of Conversation message.
END CONVERSATION @conversation_handle WITH CLEANUP ;
END

-- return the message body
select message_body from @tempTable;

END ;
GO

Microsoft Developer Division has started DevDiv Hotfix Public Availability Pilot Program. This is a program where hotfixes are made available to the general public. The fixes are not as ruggedly tested as a Service Pack, but if you happen to run into a specific problem the fix may just be the solution for you.

Go to: https://connect.microsoft.com/content/content.aspx?ContentID=3705&wa=wsignin1.0&siteid=210

As of now there are 7 hotfixes available.

SQL Server 2005 introduces Service Broker, an extensive mechanism for supporting asynchronous messaging with SQL Server.

The very heart of Service Broker is the new SQL Server object: QUEUE. To utilize just the queue you still have to go through the service broker and do all the extensive stuff which you may or may not need.

The minimum steps you need to create a queue are:

1. Create a message type
2. Create a contract
3. Create a queue
4. Create a service

Make sure there is a master encryption key available in your database, otherwise the message won't get send.

I've created stored procedures for sending en receiving messages. Works quite well. I'll post some SQL code later.

 

I just created a new virtual machine image and installed .NET Framework 3.0 and the Windows Workflow Foundation extension for Visual Studio 2005. Pretty smooth install, the 2.9MB download for the .NET Framework turned out to be just a bootstrapper which in turn downloaded another 30MB. Don't you just love high speed Internet, it only took 25 seconds.

I just was wondering, so I looked it up. Tech-Ed 2007 will be held on June 4-8, 2007 in Orlando at the Orange County Convention Center (OCCC).

XML Schema's can be used to validate XML. This is a powerful, yet performance intensive task. During development and testing the validation provides useful insight in tracking problems. Once the system is stable this is less of an issue (unless 'anonymous' people can access your service).

The Service Broker documentation in SQL Server 2005 says the following about schema's:

"If the conversation uses XML messages, create a schema for each XML message. You use schemas during development, testing, and troubleshooting. When your service is in production, you may decide to remove schema validation from your message types, to improve performance."

Kinda makes sense.

 

Internet Explorer 7.0 is now an update that comes through you Windows Update. I love IE7.0, but updating all my Virtual PC images is a pain :-(

 

Copied from www.netfx3.com:

"The .NET Framework 3.0 has officially been released!  You can download the .NET Framework 3.0 components here:

• .NET Framework 3.0 Runtime Components
• Windows SDK for Vista and the .NET Framework 3.0 
• Visual Studio 2005 Extensions for .NET Framework 3.0 (Windows Workflow Foundation)
• Visual Studio 2005 Extensions for .NET Framework 3.0 (WCF & WPF), November 2006 CTP

Note, if you are using Windows Vista the .NET Framework 3.0 Runtime Components are installed by default.

The Readme for the released version of the .NET Framework 3.0 is available here.  If you have a previous CTP installed, please be sure to review the uninstall instructions.   If you have questions about installing the .NET Framework 3.0, please post your questions to the .NET Framework Setup Forum."

I just received a copy of my book (MCTS Self-Paced Training Kit (Exam 70-529): Microsoft .NET Framework 2.0 Distributed Application Development) through the mail.

Had to check on Amazon, yes they're shipping right now

 

Updated:
A friend just noticed that my book is also on Microsoft Learning: http://www.microsoft.com/MSPress/books/authors/auth9984.aspx.