Enroll first user with command line

Hi everybody,

I have a environment with PGP UN and AD integration and 300 standalone client machines that are not connected with AD service, and I need to encrypt this machines using a user that there is in AD service.

When I try to enrol the first user and I'm logged with a local account (is not the AD account) using the command pgpwde.exe --add-user --disk 0 -p password --user user --domain domain --ap password, i'm receive a error: -12450 admnistrative preferences file not found.

How can I enroll the first user only use command line in this standalone machine?

Thanks!