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Editorial Team
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Asked: 2026-05-15T09:40:42+00:00

I have a Silverlight App that has worked well in Debug and Release modes

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I have a Silverlight App that has worked well in Debug and Release modes for weeks.

It still works well in Debug mode.

However, now when I run it in Release mode, it starts, shows me the screen, loads the data, then hangs, and the browser (Firefox) closes automatically. I’ve tried other browsers and each of them crashes, Chrome says “The Silverlight Plug-In has crashed” for instance.

Here are the last lines of Output that I get:

'firefox.exe' (Silverlight): Loaded 'System.Windows.Controls'
'firefox.exe' (Silverlight): Loaded 'System.Windows.Controls.Toolkit'
'firefox.exe' (Silverlight): Loaded 'C:\Program Files\Microsoft Silverlight\4.0.50524.0\en-US\mscorlib.debug.resources.dll'
'firefox.exe' (Silverlight): Loaded 'C:\Program Files\Microsoft Silverlight\4.0.50524.0\en-US\System.Windows.debug.resources.dll'
The program '[1120] firefox.exe: Silverlight' has exited with code -2147023895 (0x800703e9).

How can I get more information about what is happening at the point of crash in Release mode that is not happening in Debug mode?

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1 Answer

  1. Editorial Team

    This seems relevant to your issue. From the update at the bottom, it seems that

    the display string used for the
    debugger triggered a program path
    which was not executed otherwise, and
    there it entered in an endless loop

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