VB.NET Addin: How to stop addin command?

Hello Forum,

I am using standard VB.NET Addin and want to add some lines into SwAddin.vb file, so the Addin command could be stopped, if some criterien are not satisfied.

For example I have such lines in a function of SwAddin.vb...

        If 3 <> 4 Then

            MsgBox("Error! Run this addin again!")

            ' What should I write here to stop Addin and quit?

        End If

Thanks!

Update: I only want to quit the Addin command, not the SolidWorks.

SolidworksApi macros