Code Access Security and User Controls

About a week ago I helped troubleshoot an issue where a customer wrote a WinForms User Control and she was trying to use it on a form she was developing.  When she dragged it from the toolbox, she was getting the following error: An exception occurred while trying to create an instance of Contoso.XP2.AuthorList.  The exception was “Request for the…

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"Invalid Parameter" when receiving from a remote queue

I’m backing up a colleague who is out on vacation this week and got an interesting issue from one of his customers.  They’d implemented a simple Windows Service in C# (v1.1) to read messages from a remote MSMQ queue.  The issue they ran into is when the server the remote queue went down, they’d get…

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Changes to authentication in XPSP2

One of my customers ran into an interesting issue when upgrading their developer workstations to Windows XP SP2 – they stopped being able to debug ASP.NET applications running on the local IIS5.1 webserver. They went through the standard steps of ensuring permissions and appropriate security group membership, but it still failed. Turns out they have…

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Winforms and threading

There has been a recent discussion internally amongst the ADC’s in my region* about threading and WinForms.  I originally cut my teeth in Windows programming by writing a multi-threaded NT Service that ran on a Alpha based Windows NT 3.51 system (who coined the term “Wintel”?  I had a copy of Visual C++ 4.0 for…

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