Bridged adapter list is empty (with NDIS5 drivers)

[Sam Morris]

As a workaround for #15060 I tried installing VirtualBox using the old NDIS 5 network drivers, by running the installer with the option -msiparams NETWORKTYPE=NDIS5

After installation, attempting to configure a bridged network interface is impossible because the list of adapters to bridge to is empty (see attached screenshot).

There are no other error messages from VirtualBox about a the failure to enumerate network adapters. It looks like the NDIS5 drivers are active, given...

PS > get-windowsdriver -online | Where-Object -property ProviderName -Like *oracle* | format-list

Driver           : oem16.inf
OriginalFileName : C:\Windows\System32\DriverStore\FileRepository\vboxnetadp.inf_amd64_a4e9db3f071a0883\vboxnetadp.inf
Inbox            : False
ClassName        : Net
BootCritical     : False
ProviderName     : Oracle Corporation
Date             : 28/04/2021 00:00:00
Version          : 6.1.22.44080

Driver           : oem22.inf
OriginalFileName : C:\Windows\System32\DriverStore\FileRepository\vboxnetflt.inf_amd64_1ca009f9c76e42da\vboxnetflt.inf
Inbox            : False
ClassName        : NetService
BootCritical     : False
ProviderName     : Oracle Corporation
Date             : 28/04/2021 00:00:00
Version          : 6.1.22.44080

Driver           : oem56.inf
OriginalFileName : C:\Windows\System32\DriverStore\FileRepository\vboxnetfltm.inf_amd64_4f271f5e54b849f3\vboxnetfltm.inf
Inbox            : False
ClassName        : Net
BootCritical     : False
ProviderName     : Oracle Corporation
Date             : 28/04/2021 00:00:00
Version          : 6.1.22.44080

Driver           : oem9.inf
OriginalFileName : C:\Windows\System32\DriverStore\FileRepository\vboxusb.inf_amd64_721cfc8f354e0c0c\vboxusb.inf
Inbox            : False
ClassName        : USB
BootCritical     : True
ProviderName     : Oracle Corporation
Date             : 28/04/2021 00:00:00
Version          : 6.1.22.44080