SLAVE file decrypting module for a MASTER account. The MASTER user is required to purchase a Slave file decrypting module for his Helpdesk account to be able to encrypt and decrypt the files submitted by their Slaves. It is possible to manage up to a max of 99 Slave users with one module. Once the limit has been exceeded, the Master must purchase a second module. The SLAVE Manager is an online service that requires that the MASTER maintain an active subscription.