HiTrack 4 Configuration Options: Arrows indicate encrypted file transfers between computers for the stand-alone options. Networked options show communications from the stand-alone version to the HiTrack database, and the web version to the IIS Server then to the HiTrack Database. Arrows indicate communications from the HiTrack Database to the HL7 Message Server, and email communications between the HL7 Server and Admissions, Immunizations, Birth Reg., etc.