🚀 go-pugleaf

Well, I thought I'd try converting a small Windows app written in C to
Visual Basic 1.0, but it appears I can't.  Here's some things I that
apparently can't be done in VB, or that I can't find in the doc:

1.  Append an item to the system menu and get notified when it's
    selected.  My app doesn't need a full-scale menu bar, so I just
    append my "About FOO..." menu item to the system menu.
2.  Send messages between forms.  My app uses three windows.   Clicking
    on a control in the main window causes immediate changes to the
    other two windows.
3.  Detect when the form is iconized. My app draws on its icon, which
    I understand can be done in Visual Basic, but when?  In C I just
    call IsIconic() whenever I get a WM_PAINT message and paint the
    icon when it (IsIconic) returns TRUE.  While I'm aware that I
    can call IsIconic from VB, surely I don't need to for such a
    simple thing?

Can some VB guru out there show me how to do these thing?
Thanks in advance.