How to open an URL in a browser using VBA?

Trying to open a PDF(-website) with a referer which can only be opened with a link-click on the parents page.

By Using

 CreateObject(WinHttp.WinHttpRequest.5.1) 
.setRequestHeader "referer", "https://...“ 

the access works, but I need to open the page in a browser to view the pdf.

Found this:

https://learn.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/platform-apis/aa752094(v=vs.85)

Syntax: object.Navigate2(URL, Flags, TargetFrameName, PostData, Headers)

(PostData [in, optional] Headers [in, optional])

and tried

 Dim IE As InternetExplorer  
 Set IE = New InternetExplorer 
    
   With IE
    .Navigate2
    https://main...,
    "https://referer..."

No results! Does anyone have a solution? (Just VBA please! Thx)

I believe you provided the wrong Referer URL (and wrong format too, you need to also include Referer: in addition to the Referer URL) to the Headers parameter, try this:

Private Sub Test()
    Dim oIE As InternetExplorer
    Set oIE = New InternetExplorer
        
    With oIE
        .Visible = True
        .navigate "https://www.zvg-portal.de/index.php?button=showAnhang&land_abk=ni&file_id=16396&zvg_id=6467", _
                    headers:="Referer: https://www.zvg-portal.de/index.php?button=showZvg&zvg_id=6467&land_abk=sh"
    End With
    oIE.Quit
    Set oIE = Nothing
End Sub