DPX DATA PROTECTOR EXPR CLT B/U AGNT LTU HP Data Protector Express software provides secure protection for data, applications and systems without requiring an expert to install, manage and operate the software. Data Protector Express delivers simple and reliable data protection for a single machine or a small network running on Windows, Linux or NetWare. Backup data is written to disk, tape and DVD/CD or a combination of these media as the backup media.