When installing WorkflowGen Windows Services, after running DRIVE:\Program Files\Advantys\WorkflowGen\Services\bin\winsvc-install.cmd, you might receive the following error message:
Unable to create an instance of the Advantys.Directories.Win.Services.SynchronizationService.SynchronizationServiceInstaller installer type.
This is because the installation must be performed with Administrator privileges. Install it again by right-clicking winsvc-install.cmd and choosing Run as administrator.