https://bugs.winehq.org/show_bug.cgi?id=49792
--- Comment #2 from Hans Leidekker hans@meelstraat.net --- Our certificate import wizard doesn't properly support PFX files. It should be fixed to call PFXImportCertStore, and it also needs a dialog to enter the password if the file is protected.
If I work around that the import succeeds and the certificate is shown in the listview. It's not there when I open the control again, so it doesn't persist for some reason.