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Are there a known issues when working with events from .NET 4 COM assemblies within ArcMap?

For example, when using IDocumentEvents_Event from a .NET 4 assembly in ArcObjects, the event appears to work properly, but disables the standard right-click context menu behavior in ArcMap. Changing nothing in the assembly except the target to .NET 3.5 or .NET 2.0 will "restore" the default behavior. Is this a COM issue, or an ArcObjects issue? If the latter, is there a potential workaround?

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up vote 2 down vote accepted

You can vote for .Net 4.0 support idea here: http://ideas.arcgis.com/ideaView?id=087300000008Dwn

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