Could not load type System.ServiceModel.Activation.HttpModule

 

Just faced one problem with my Windows Server 2008 R2 server while configuring my Silverlight WCF application for demo…

my application was working fine on my localhost and it fail to start when I uploaded to my demo server, and I got following error message…

“Could not load type 'System.ServiceModel.Activation.HttpModule' from assembly 'System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.”

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

This error can occur when IIS is installed after installing .NET Framework 4, or if the 3.0 version of the WCF Http Activation module is installed after installing IIS and .NET Framework 4.

simplest solution to resolve this issue, run the following from command line:

aspnet_regiis.exe /iru

you can locate aspnet_regiis.exe at

• %windir%\Microsoft.NET\Framework\v4.0.30319
• %windir%\Microsoft.NET\Framework64\v4.0.30319 (on a 64-bit machine)

PUG Live Webcasts - An exclusive series of webcasts by Pune User Group

We are pleased to announce the launch of PUG Live Webcasts, an initiative by PUG team through which you will enjoy series of Webcasts on various Microsoft technologies. We are starting with Visual Studio 2010 and Windows Phone 7 Development series; very soon we will be coming up with SharePoint 2010, Silverlight and many more technologies.

for more details visit http://www.puneusergroup.org/live-webcasts.aspx

Free Microsoft Press eBooks available for download

List of some of Microsoft free eBooks:

• Free eBook: Moving to Microsoft Visual Studio 2010 (10 chapters by Patrice Pelland, Pascal Paré, and Ken Haines)
• Free eBook: Introducing Microsoft SQL Server 2008 R2 (10 chapters by Ross Mistry and Stacia Misner)
• Free eBook: Programming Windows Phone 7 Series (DRAFT Preview) (6 chapters by Charles Petzold)
• Free eBook: Petzold’s Programming Windows Phone 7 (Special Excerpt 2) (newer than the eBook above; 11 chapters by Charles Petzold)
• Free eBook: Own Your Future: Update Your Skills with Resources and Career Ideas from Microsoft (8 chapters by Katherine Murray)
• Free eBook: Understanding Microsoft Virtualization Solutions (Second Edition) (6 chapters by Mitch Tulloch)
• Free eBook: First Look Microsoft Office 2010 (14 chapters by Katherine Murray)
• Free eBook: Windows 7 troubleshooting tips (short eBook by Mitch Tulloch)
• Free eBook: Introducing Windows Server 2008 R2 (9 chapters by Charlie Russel and Craig Zacker)
• Free eBook: Deploying Windows 7, Essential Guidance (10 chapters from the Windows 7 Resource Kit and 6 TechNet articles)

^{From Microsoft Press web site  thanks to Abhishek Kant for sharing the list.}

WebMatrix Beta 2 released

Microsoft announced release of WebMatrix Beta 2 and the Web Platform Installer is available for download at http://go.microsoft.com/fwlink/?LinkID=194638

WebMatrix is a free tool which offers developers a one-click solution to create, build website faster and make their job easier. It provides easy way to customize and build Web sites from popular open source apps like WordPress, Drupal and Joomla as well as a powerful tool to build sites from the ground up using ASP.NET, PHP, HTML and a number of other leading technologies. it also provides facility to publish websites with integrated deployment tools and gallery of hosting providers that meet their needs. this is a great tool for web developers who want to find a new and easier way of building web sites, or who want to learn how to build web sites quickly.

ASP.NET security Vulnerability Found

Few hours ago Microsoft released a Microsoft Security Advisory about a security vulnerability in ASP.NET.  This vulnerability exists in all versions of ASP.NET. Microsoft recommend that all customers immediately apply a workaround to prevent attackers from using this vulnerability against your ASP.NET applications.

here are details and a workaround from Scott Guthrie’s Blog as it is…

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Important: ASP.NET Security Vulnerability

A few hours ago we released a Microsoft Security Advisory about a security vulnerability in ASP.NET.  This vulnerability exists in all versions of ASP.NET.

This vulnerability was publically disclosed late Friday at a security conference.  We recommend that all customers immediately apply a workaround (described below) to prevent attackers from using this vulnerability against your ASP.NET applications.

What does the vulnerability enable?

An attacker using this vulnerability can request and download files within an ASP.NET Application like the web.config file (which often contains sensitive data).

At attacker exploiting this vulnerability can also decrypt data sent to the client in an encrypted state (like ViewState data within a page).