A common issue we see customers having is after installing ASP.NET 2.0, the ASP.NET Tab is missing from IIS. This tab is used for setting the version of ASP.NET and a lot of other things. When this tab is missing, it can be rather difficult to get it...

So I tend to describe a lot of issues here, but we had some really great conversation in our blog chat.  So I thought I would ask for questions from everyone.  Feel free to ask anything you like.  If it is a simple, quick answer, I’ll answer...

I am considering creating some videos showing some debugging tips.  My original idea is to create short videos that just some doing some specific things.  So not full debug sessions, but rather specific parts.  So that when you are debugging...

During our recent blog chat, there were a number of topics that were asked about and I am going to expand on some of them.  The first one is the memory limits for different processes. This really depends on a few different things.  The architecture...

We get this problem from time to time so I thought I would talk about what to do when the performance counters are missing for ASP.NET. Method 1 The first piece of advice is to upgrade to the latest version of the framework, so the latest Service Pack...

So for this quiz, we are going to be looking at attempting to load sos.dll for the .NET Framework 2.0. We get a dump file, and when we try to run a command on the dump file, we get an error like: So reading this, we see that we should run .cordll -ve...

Here is a question that was asked on my posting trying to invite questions, Got a question- Get an answer here . Question Something that would be handy straight from the team is how to handle ASP.NET (2 and later) form events when a Master page is added...

A common problem we see when moving to .NET all revolves around the finalizer.  There are a few reasons that this happens: Developers move from C/C++ to C# and are used to created classes with a constructor and destructor. Developers don’t understand...

So after using IE8 for a while now, there are a few things that are useful for people to keep in mind.  First, there are a lot of changes in IE8.  I am really excited about some of them, such as WebSlices.  They give you the ability to...

During the course of debugging, often times you will find an object that you would like to know where it came from (who allocated the object).  The first command you will want to run is !gcroot .  But this command will only find the object if...

Here is another command that can really help to figure out what is happening.  If you have spent much time looking at managed dumps, you have probably come across the problem of trying to look at a System.DateTime or System.TimeSpan object. ...

Thanks to everyone that attended the chat we had today on Tess and my pages.  I think it went really well and we are going to continue these in the future and hopefully get to some more topics. I just wanted to let everyone know that we are going...

Problem Description So this is a customer situation we found were the customer was getting an System.OutOfMemoryException.  We were able to reproduce this with a console application that just ran: For Iterator = 0 To 99999999999 Regex.IsMatch(CONNECTION_STRING...

We recently had a case where the customer was having performance problems. They were seeing requests take a few minutes to return and didn’t know what was happening. So they took some dumps while the problem was happening. So we ran this dump through...

There are multiple ways to capture a dump.  There are some examples discussed in my previous post, HOWTO- Capture a dump on a specific managed exception .  You can just use DebugDiag to capture a dump.  The easiest way in DebugDiag is to...

This post is a list of books that I would suggest people to read.  I will continue to add to this list, also, if you are using IE8, the list itself is a webslice.   Recommended ASP.NET Books Debugging Microsoft .NET 2.0 Applications Programming...

If you try to make an asynchronous call, you will notice that the thread that executes the call doesn't run under the same account as the thread that called it, assuming you are using impersonation. There are a number of ways to change this if you would...

So the last quiz asked about a common error message you may see when debugging a dump from .NET on a machine other then where the dump was captured.  Now I want to go into more detail on this. For a look at the quiz, check out POP QUIZ- SOS not loading...

So we have a bunch of debugger extensions that we need to use depending on the situation.  So here are the extensions that can depend on various situations and when to use which.  The first thing to decide is to load the right DLL for the Framework...

So we recently came across an issue where Visual Studio 2005 and 2008 Designers were not respecting assembly binding redirection. Scenario We have a file which is now version 2 and stored in the GAC .  So the assembly version is 2.0.0.0.  We...

Problem 1 So here is the scenario.  You open a dump from when you were experiencing a problem and try to run an SOS command and you see: 0:024> !dumpheap -stat Cannot get the ThreadStore, do you have symbols for the mscorwks/mscorsvr files...

So in a previous post, we talked about Understanding when to use a Finalizer in your .NET class so now lets take a look at what the Finalize queue looks like and how to tell if things are bad. The command we use is !finalizequeue in sos: 0:010>...

So while looking through a dump, you will sometimes come across an IP Address.  For example, the System.Net.IPAddress: If you look at this output, you can see that we have the address in the m_Address field, but what is 1895899146?  This is...

There have been a lot of rumors around Microsoft coming out with something that is Software + Services.  So at the Web 2.0 conference, we finally announced Live Mesh . Check out this Intro post for a bunch of the details.  This also mentioned...

So there are a couple different things that can affect performance of your ASP.NET application.  One of them is if you are running with debug builds of your files.  This is where this command comes in.  When run, it will tell you any modules...