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ITsVISTA KB-Link: KB2126815

EapHost configuration APIs from a managed application built with AnyCPU option would fail with error 0×80420011 when run on 64-bit OS.

The problem is that .NET binaries when build for ‘any cpu’ specifies the image type as x86. So, when EapHost validates if the method binary is of the same architecture as the loading process, it will fail on AMD64 machines.

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB2126815.

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