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Notes from a dark corner

Debugging ASP.NET, the CLR and anything that uses clock cycles.

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More on the mysterious case of accessing .NET Performance Counters using WMI
Back in February I blogged about a strange case we had seen where a customer was having trouble seeing certain ASP.NET performance counters when using WMI to access them . If you start Perfmon with the /WMI switch then Perfmon uses WMI rather than the Read More...
Summary of ASP.NET Versions, Updates and Hotfixes
[Note: September 2009 I am in the process of trying to bring this list up to date. It may not be complete] There is nothing worse than wrestling with a problem for ages only to discover later that there is already a fix for it. I therefore felt it would Read More...
“Web server here” shell integration
This is a very useful and neat little trick: http://haacked.com/archive/2008/06/24/vs2008-web-server-here-shell-extension.aspx Doug Read More...
Some recent ASP.NET fixes (March 2009)
[Updated 8th April 2009. I don’t generally like to change posts after they have been published but I wrote this post while some of the KB articles were still being authored. For a number of reasons there have been some changes to which articles document Read More...
Hey, where's my session state gone?
This is from a case I helped a customer with last Autumn. It was one of those kick yourself moments when I realised what the problem was and we even have a KB article about it. But it is relatively uncommon and you wouldn't necessarily come across the Read More...
"Error creating control - ControlInstanceName '[text]' could not be set on property 'PropertyName' " in Visual Studio 2008
One of the cases I've been working on recently is for an issue introduced by Microsoft .NET Framework 3.5 Service Pack 1. The fix has now been finalised and released on the MSDN Code Gallery .   When you get this error the symptoms are like this: Read More...
Getting the .NET Framework made easy...
The Microsoft .NET Framework product group have been busy making it easier to find out about and install the latest version of the .NET Framework... a simple URL and a clean UI at http://www.microsoft.com/net/   It's certainly easy to remember. And Read More...
ASP.NET food for thought...
Looking for some great ASP.NET information and learning resources? Here's a few .. ASP.NET Whitepapers ASP.NET FAQ Securing ASP.NET Websites Learn ASP.NET If you've got any favourites, I'd love to hear about them! Cheers Doug Read More...
Bogus error messages during compilation of C# web projects after installing Visual Studio 2008 SP1
A fix has published for an issue whereby after installing Visual Studio 2008 SP1 you may see bogus error messages during compilation of your C# based web projects. You may see lots of compilation error messages in the output pane when you compile a project Read More...
A long lost friend
I was looking for one of my blog posts the other day that talks about how ASP.NET uses Windows memory. I was hunting and hunting and could not find it anywhere. I finally realised that at some point I had somehow left it in an unpublished state (probably Read More...
Link: Useful article on ASP.NET Performance...
Over on the "ACE Team" blog there's a useful blog post with some performance tips for ASP.NET sites . The point about batch compilation and Debug="true" was certainly correct for version 1.1 but I think in ASP.NET 2.0 they are decoupled Read More...
Free Microsoft Developer and web design software for full time students
This sounds like a good deal. Free? Free? Sounds to good to be true :-). But it is. If you are a full time student and into software development, take a look: https://downloads.channel8.msdn.com/Overview.aspx Check the site for details, but at time of Read More...
Uninstalling .NET Framework 3.5 SP1
You may have a need to uninstall .NET Framework 3.5 SP1, perhaps for testing purposes or because you find it causes you some specific issue with an application you have. If this is the case, it's important to realise that when you install .NET Framework Read More...
Clearing out "temporary asp.net files"
When I am testing out issues with ASP.NET dynamic compilation and shadow copying, I frequently need to ensure the contents of the "temporary asp.net files" folder have been removed so that I get a clean and consistent repro each time. Normally I just Read More...
Upcoming MSDN events for developers in Reading
If like me you live or work realise within striking distance of Reading (in the UK) then there are a couple of free MSDN events coming soon that may be of interest to you: MSDN Event - Rich Internet Applications with Visual Studio 2008 Service Pack 1 Read More...
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