i found excellent white paper of web services in Microsoft Dynamics AX 2012. You can download it from here 

This white paper gives an overview of different types of services available in Microsoft Dynamics AX 2012 and provides guidance to developers and architects in deciding when to use a specific service type. The white paper assumes familiarity with the various programming models in Microsoft Dynamics AX 2012 and with the basics of the Services and Application Integration Framework.

New Stuff for Developers

What’s New in Microsoft Dynamics AX 2012 for Developers [AX 2012]
http://msdn.microsoft.com/en-us/library/gg845327.aspx

Architecture

AOS architecture [AX 2012]
http://technet.microsoft.com/en-us/library/dd309593.aspx

Model store architecture [AX 2012]
http://technet.microsoft.com/en-us/library/dd362019.aspx

Help server [AX 2012]
http://technet.microsoft.com/en-us/library/gg866975.aspx

.NET Business Connector architecture [AX 2012]
http://technet.microsoft.com/en-us/library/dd309664.aspx

Enterprise Portal architecture [AX 2012]
http://technet.microsoft.com/en-us/library/dd362005.aspx

.NET Business Connector

.NET Business Connector Overview [AX 2012]
http://msdn.microsoft.com/en-us/library/aa659581.aspx

Development

Microsoft Dynamics AX IDE [AX 2012]
http://msdn.microsoft.com/en-us/library/aa676506.aspx

Visual Studio Development for Microsoft Dynamics AX [AX 2012]
http://msdn.microsoft.com/en-us/library/gg889157.aspx

Visual Studio Integration [AX 2012]
http://msdn.microsoft.com/en-us/library/gg889299.aspx

Business Intelligence

Business intelligence components [AX 2012]
http://technet.microsoft.com/en-us/library/gg731794.aspx

Installation & Configuration

Firewall settings for Microsoft Dynamics AX components [AX 2012]
http://technet.microsoft.com/en-us/library/gg731780.aspx

Planning hardware infrastructure [AX 2012]
http://technet.microsoft.com/en-us/library/dd362104.aspx

Microsoft Dynamics AX 2012 Implementation Planning Guide [AX 2012]
http://www.microsoft.com/download/en/details.aspx?id=4007

Moving between Microsoft Dynamics AX 2012 Environments [AX 2012]
http://blogs.msdn.com/b/axsupport/archive/2011/11/07/moving-between-microsoft-dynamics-ax-2012-environments.aspx

AX 2012 WHITE PAPERS
http://www.microsoft.com/download/en/details.aspx?id=20864

Utilities

AxUpdatePortal Utility [AX 2012]
http://msdn.microsoft.com/en-us/library/dd261467.aspx
http://blogs.msdn.com/b/solutions/archive/2009/02/04/axupdateportal-utility.aspx

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Today I am trying to generate XSD from Well formed XML. Visual studio return this error

WFX to XSD schema generation module is not installed. Execute C:Program FilesMicrosoft BizTalk Server 2006SDKUtilitiesSchema GeneratorInstallWFX.vbs to install the WFX to XSD schema generation module.

To resolve this issue, simply run the aforementioned VB script; you’ll also need to run the InstallDTD.vbs script to add DTD support.

Some times run installWFX.vbs does not solve the problem then do one more step copy dll inside

“C:Program FilesMicrosoft BizTalk Server 2006SDKUtilitiesSchema Generator” to  folder “C:Program Files (x86)Microsoft BizTalk Server 2010Developer ToolsSchema Editor Extensions”

It will solve the problem

• Common XPATH Examples, Questions, Issues with Biztalk 
• Using XPath Inside BizTalk Orchestrations 
• BizTalk Working With XPath – XPath 1.0 Function Library Quick Reference 
• XPath – the hidden language of BizTalk? 
• BizTalk 2010 Recipes : Orchestrations – Using XPath Queries on Messages 
• BizTalk Server: Handling decimal types with the xpath() Function 
• BizTalk: xpath: How to work with empty and Null elements in Orchestration 

Following links are best starting point for ESB Toolkit.

http://abhijitmahato.wordpress.com/2010/09/10/biztalk-esb-toolkit-2-0-samples-content-based-routing/

http://blogs.technet.com/b/meamcs/archive/2011/11/17/biztalk-esb-step-by-step-walkthrough-creating-a-custom-orchestration-service.aspx

http://www.codeproject.com/Articles/293385/Dynamic-message-processing-and-routing-in-Itinerar

http://www.codeproject.com/Articles/288285/Hello-World-in-BizTalk-ESB-Itinerary-using-a-Purch

I found this error, when I just complete the installation of ESB toolkit on my machine. I found that I missed the following Filters on “All.Exceptions” send port

ErrorReport.FailureCode – Exists
Microsoft.Practices.ESB.ExceptionHandling.Schemas.Property.FaultCode – Exists

When I set the these filters on send port. All exception port successfully enlisted and start

I am very happy to announce that BizTalk 2010 Cookbook written by a great MVP Steef Jan is released.

He has done a marvelous job writing this book, the contents of the book can be viewed at Packt Website.

The book is mainly for Developers and Administrators who can gain their knowledge in Development, Maintaining, Monitoring & Deployment of BizTalk Solutions. The book has step by step implementations (recipe) of BizTalk Solutions which follows industry best practices & patterns.

Official technical reviewer of the book are  Randal van Splunteren, Sandro Pereira & Rene Brauwers

While installing ESB portal on 64 bit machine I found following errors

File Management_Install.ps1 cannot be loaded because the execution of scripts is disabled on this system. Please see “get-help about_signing” for more details. At line:1 char:2

The reason for this error is the security setting on your pc that does not allow you to execute a script.  This is the so-called Execution Policy. By default, the Execution Policy is set to Restricted. This setting means that you may not run any PS1 script at all.

An overview of the policy levels: Set-ExecutionPolicy Unrestricted

But result is same, then its comes in my mind that machine is  64 bit.

I create a new file with cmd as follow and run it with administers.

%SystemRoot%syswow64WindowsPowerShellv1.0powershell.exe Set-ExecutionPolicy Unrestricted

For 32 bit machine at cmd write powershell and enter then just unrestricted policy level  

Set-ExecutionPolicy Unrestricted

for 64 bit machine  use following string at cmd open with administrator rights.

%SystemRoot%syswow64WindowsPowerShellv1.0powershell.exe Set-ExecutionPolicy Unrestricted

This will solve my problem.

open cmd with accessories with run as administer option.

When command prompot open. Write powershell. And press enter.

Powershell is opened. Now write set-executionpolicy unrestricted. It will run successfully.