Easiest way to take your web site offline (IIS 6.0 or IIS 7.5 with .NET 4.0)

If you are running your application within a .NET 4.0 application pool (IIS 7.0 or IIS 7.5) or your web site is configured as an ASP.NET 4.0 web site (IIS 6.0) and would like to show your clients an “under maintenance” page for a limited time, the easiest way is to put a file named…

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Public webcast about latest Security Advisory bulletin (2659883 – Vulnerability in ASP.NET Could Allow Denial of Service)

Microsoft will host a webcast to address customer questions on latest published security bulletin about vulnerability in ASP.NET which could allow denial of service: Title: Information About Microsoft’s December 2011 Out-of-Band Security Bulletin ReleaseDate: Thursday, December 29, 2011, at 1:00 P.M. Pacific Time (U.S. & Canada). URL: https://msevents.microsoft.com/CUI/EventDetail.aspx?EventID=1032502798 For more information about the vulnerability and…

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Visual Studio 2010 and .NET Framework 4 Training Kit is available for download

The Visual Studio 2010 and .NET Framework 4 Training Kit includes presentations, hands-on labs, and demos. This content is designed to help you learn how to utilize the Visual Studio 2010 features and a variety of framework technologies including: C# 4 Visual Basic 10 F# Parallel Extensions Windows Communication Foundation Windows Workflow Windows Presentation Foundation…

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Session_OnEnd or Session_End events in global.asax won’t fire if you store ASP.NET sessions out of proc (in State Server or SQL Server)

This is an overlooked behavior which may break your ASP.NET application if you are using Session_OnEnd or Session_End events in Global.asax. Here is a snippet from related article from MSDN: The Session_OnEnd event is only supported when the session-state HttpSessionState.Mode property value is InProc, which is the default. If the session-state Mode is set to…

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Free download – PSSCOR2 – New WinDBG extension for debugging .NET 4.0 applications

PSSCOR extension is a debugger extension which is super-set of SOS.DLL. It is used for debugging .NET issues with WinDBG, such as high memory / CPU usage, crashes, etc… We have released PSSCOR2 for .NET 2.0 related issues before and we were using PSSCOR4 for a long time in Microsoft for .NET 4.0 related issues and…

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Web services may fail on IIS 7.5 or IIS 7.0 (with OS SP1) with .Net 4.0

This is a hot topic discussed in the forums and we have decided to put this on a knowledge base article: Web services may fail on Microsoft Internet Information Services (IIS) 7.5 and Windows 7 Service Pack 1 with .NET Framework 4.0 due to extensionless URL handlershttp://support.microsoft.com/kb/2520479 Here is the symptoms you may see: Consider…

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Enabling session compression in ASP.NET 4.0

Session objects are vital components in most of web applications. ASP.NET provides a few options to store the sessions, such as in-proc and out-proc. In-proc sessions are stored in the worker process memory while the out-proc sessions are stored in another process. You have two options when working with out-proc sessions: SQL Server or State…

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