Web Service SDK licensing is separate from Switch Server licensing. To be able to use the SDK, you will need to activate a special Web Service SDK license key, available from Enfocus sales (info@enfocus.com). This key must be activated through the Switch Server UI: go to . Click Activate New button in the Manage licenses dialog that appears and follow the instructions.
For convenience, the Web Service SDK can be used without restriction on a Switch Server that is running in trial mode.