need help for custom ext-pack

[TalonsLee]

I build the sample BusMouse sample from code,
and try to load it to a offical virtualbox.

But this error occurs:

None of the 1 path(s) have a trust anchor.: \Device\HarddiskVolume4\Program Files\Oracle\VirtualBox\ExtensionPacks\BusMouse\win.amd64\VBoxBusMouseMain.dll.

ext-pack-error.png (13.61 KiB) Viewed 17026 times

I did the self-signing, and installed the Certificate.
How to fix this to install the ext-pack?

If the certificate is issued by a root ca, would the ext-pack be loaded successfully?

[socratis]

I've deleted your duplicate post, duplicates are not allowed. But you're right, your question should be in the "OSE" section, not the "API" one. Moving it...