# Deploy the SPK to the Spotfire Server

The SPK file created by `buildSPK` or `buildServerSPK` is deployed to the Spotfire Server the same way any SPK is deployed.

Using the Administration Console tools, the Spotfire Server administrator places the SPK in the Spotfire Server distribution area (4a).

- For packages built with `buildSPK` (for distribution to other users), when Spotfire Analyst users start the application, they are informed that an upgrade is available. (Alternatively, the server can be configured to force an upgrade so the new SPK is distributed automatically.)
- For packages built with `buildServerSPK`, the new packages are made available to the service.

Note: If you did not provide a certificate when you build the SPK, the users are asked to accept the unsigned file. See your server administrator for more information, or to get a copy of a certificate and its password.