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Editorial Team
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Asked: 2026-05-15T22:47:16+00:00

According to the MSDN documentation , configSource is supported on Windows Server 2003 SP2.

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According to the MSDN documentation, configSource is supported on Windows Server 2003 SP2. However, when I try to access a setting using the following syntax:

System.Configuration.ConfigurationManager.AppSettings["SettingName"];

then null is returned. However, the same app works properly on Windows 7 and Windows XP (i.e. AppSettings["SettingName"] returns the expected value when using configSource).

The file that configSource points to exists for sure, since I copied the entire application directory from Windows 7 to Server 2003 for testing.

Any ideas?

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1 Answer

  1. Editorial Team

    You have an incomplete application manifest file. You need to add the "assemblyIdentity" element. Details here. There is also an MS Connect bug here.

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