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If you are trying to debug an IIS 7 hosted web application using Visual Studio and trying to use System.Diagnostics.Debug.Assert()/System.Diagnostics.Trace.Assert() in your code to launch a popup window it will not work. However you can write the output to a log file using the following: < configuration...

CAVEAT: Some stories before I get to the point, so you may want to skip to the end. We in Microsoft PSS get lot many cases on a daily basis which are related to performance issues with Web applications developed using ASP.Net and hosted on IIS. Based on my experience with debugging these issues many...

A Web service requiring Client certificate authentication is a common scenario. You may have a client application which needs to send the Client certificate as part of the web request for accessing the web service. This client application may be a Windows/Console application or another Web application...

Here is a quick post that may help you save few hours if you get into this problem. Symptoms -- Out of blue you realize that when you try to create and open a new Web site/Web Application project we do not see any of the Web controls in the Toolbox. It includes most of the sections in the Toolbox pane...

In PSS, we occasionally get requests from our customers wherein they want to automatically add entries for client certificate mapping in IIS or Active Directory (AD). That is either a 1-to-1, Many-to-1 or AD mapping for the client certificate authentication for the web site. I recommend going with AD...

I recently had the privilege to get access to a machine from a colleague of mine. It was a Windows server 2003 server and I had to test some ASP.Net application for one of my pet projects. I was focusing completely on the project at hand before I was completely taken off by a surprise, although not a...

I recently had the pleasure of working on the implementation of Asp.Net Request Routing feature that comes in bundled with .Net Framework 3.5 SP1. This is a cool stuff wherein care has been taken to ensure it can be used independently of MVC Framework. It can be used with Dynamic Data as well as implemented...

Virtual Server 2005 (VS2005) is a well-known tool to manage Virtual Machines (VMs) on a host server. It is a great feature to manage virtualization for hardware/software. Most often one would use the VS2005 Web Admin interface to manage VMs. But at times (like the way it recently happened for a customer...

Recently we have discovered an issue with IIS Manager wherein changing settings in a certain way may cause unexpected restart of World wide Web Publishing Service. And this may happen before you realize until you go back to the Application event log and find entries corresponding to the W3SVC restart...

Recently I was working on an issue wherein one of our customers was trying to stream data from their web application in CSV format for it to be recognizable and opened through Excel on the client's end. Basically they were setting content-type and content-disposition to open the file outside the browser...

Here is something which I recently figured out. This may be very simple to many but thought of sharing it for a wider audience. Let's say you have two ASP.Net web applications running on two different servers. Now, assuming you have a constraint wherein you cannot use Windows integrated authentication...

Ok, I understand you might feel lethargic while viewing this blog of mine thinking, here again the same old crap about server.transfer and response.redirect. Don't know how many links you would already have found if you did a Live or Google on the net on the above commands. I at least found two dozens...

I have been recently supporting Asp.Net apart from IIS in the role of a Microsoft GTSC Developer Support Engineer. I had been a programmer earlier, but had more expertise on C, C++ and other unmanaged non-web stuffs. I am new to Web technology as per the programming background is concerned. I started...