I was working on custom tab items to go to the tab control.  I got some good sample code at Szymon Kobalczyk's blog but it was in C# and the project I'm working on is in VB.  Using the standard code translator tool at developer fusion I got pretty close to where I needed to be but got hung up on how to declare my routedEventHandler in VB.  The C# code was:

public event RoutedEventHandler CloseTab
        {
            add { AddHandler(CloseTabEvent, value); }
            remove { RemoveHandler(CloseTabEvent, value); }
        }

And the VB Code translated to:

Public Custom Event CloseTab As RoutedEventHandler
        AddHandler(ByVal value As RoutedEventHandler)
             [AddHandler](CloseTabEvent, value)
        End AddHandler
        RemoveHandler(ByVal value As RoutedEventHandler)
             [RemoveHandler](CloseTabEvent, value)
        End RemoveHandler
 End Event

Visual Studio then threw an error that stated "'RaiseEvent' definition missing for event 'CloseTab'.  All of the sample code I was finding on MSDN was in C# so no help there.  The blendaholic though pointed me to this article at the Karl on WPF blog that had an example of what I wanted to do.  As the error message suggests, in VB you have to have 3 sections to your custom event, an AddHandler, a RemoveHandler, and a RaiseEvent section.  So the actual code translation from C# is:

Public Custom Event CloseTab As RoutedEventHandler
        AddHandler(ByVal value As RoutedEventHandler)
             [AddHandler](CloseTabEvent, value)
        End AddHandler
        RemoveHandler(ByVal value As RoutedEventHandler)
            [ RemoveHandler](CloseTabEvent, value)
        End RemoveHandler
        RaiseEvent(ByVal sender As Object, ByVal e As RoutedEventArgs)
             Me.RaiseEvent(e)
        End RaiseEvent
End Event

Hope this helps anyone else who is trying to figure out how to wireup routed event handlers in VB!