ArcGIS 10: Add-In (add Button to Menu 'File')

Question

Hi folks i need to add some functionality to ArcMap's File-Menu. I'm using the code listet below to create the add-in and adding the button to the menu... well, clicking the menu 'file' causes ArcMap to crash. So obviously, there has to be an error. any ideas? esriaddinx:

JohnHauck · Answer

Please try with the attached. I don't see any issues with this type of workflow. Seems like the confusion could be with this:class Button1:
Public Sub New()
application = CType(Hook, IApplication)
End Sub

Protected Overrides Sub OnClick()
MsgBox("HALLO!")
End Sub

With AddIns you have access to a static class that you can get the application or document reference from rather than working with the hook.

VB example: My.ArcMap.Application

C# example: ArcMap.Application

TestExtension.zip