The last one is easy SomeControl.ListOpened += new EventHandler(SomeControl_ListOpened); converts to AddHandler SomeControl.ListOpened, Addressof SomeControl_ListOpened The other two are rather tricky. They use lambda functions which VB doesn't really support. Essentially SomeControl.SiteReached += (s, ea) => miBack.Enabled = false; Says, "Add a new handler for SiteReached that takes two parameters (s and ea). This function will set miBack.Enabled = False." Making the Sub in VB is rather easy Sub SomeControl_SiteReached(s as Sender, ea as System.EventArgs) The hard part is duplicating the middle. If miBack is global or accessible from SomeControl_SiteReached then you are fine. If miBack is local to ManuItem1_Click, then you have a problem. You will have to find some way to change the Enabled state for miBack.