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Resolving compile error "Interop type cannot be embedded. Use the applicable interface instead"

When working with COM interop libraries you may receive the compile error "Interop type cannot be embedded. Use the applicable interface instead". This article describes two common causes of this error and how to resolve it.

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Richard Moss
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Extracting email addresses from Outlook

A sample project which shows how to extract email addresses from Outlook via C# and Interop.

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Richard Moss
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Error 80040154 when trying to use SourceSafe via interop on 64bit Windows

Working around exception "Retrieving the COM class factory for component with CLSID {783CD4E4-9D54-11CF-B8EE-00608CC9A71F} failed due to the following error: 80040154." when trying to connect to SourceSafe via interop.

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Richard Moss