Late binding with MS office 2016 (outlook item)

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VB

LateBinding

MSOffice

I try to create an new email item with MS Outlook (2016, x64 & on Win11):

Dim appOutlook = CreateObject("Outlook.Application")
Dim appOutlookMsg = appOutlook.CreateItem(0)

The 2nd line fails with error message:

System.MissingMemberException: "Public member 'CreateItem' on type 'Application' not found."

The application itself is complied as x64 and also "CreateObject" opens a MS Outlook instance.
On my business machine both code lines are working (Office 365 BUT x86, Win10)!

Any ideas why it does not work?

What I have tried:

I checked if the member could be exposed (failed as well):

appOutlook.GetType.GetMethods()

It seems that only the members from the application object are accessible and not members from the implemented interface "_application".
I also tried to create an new Excel workwook with LateBinding; failed too.