Why does using ConfigurationManager.GetSection cause “SecurityException: Request failed” but ConfigurationManager.OpenExeConfiguration does not?

Question

I have something curious that I am hoping a .Net expert can help me with.

I have a custom configuration section and to get hold of it I do this:

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Answer 1

I had this same behavior when the assembly was "blocked" (under the file properties tab). The files were emailed via a zip to the admin. When he saved off the attachment, the block bit was added...just like when you download a file from the internet. After we clear the block, it worked fine.