>I have a _WebBrowser4 control on my form. I’m looking for a way to “SaveAs” the current page, similar to Internet Explorer File, Save As, and “Webpage, complete”. Can you help?

You may try to use Execwb method, like:
form_name.webcontrol.Execwb(4,2, "c:\hello.html")

The full description of this method you can find in help files like
Ieref.chm, or Shellcc.chm, which are likely already on your PC.