MileMaker runs on the mainstream flavors of UNIX. This includes SCO, AIX, Solaris, Linux, and HP-UX. The minimum requirements are supported as per manufacturer recommendation: 

• HP-UX: 11.1 (both PA/RISC and Itanium Releases) 
• Solaris: 10 
• SCO Open Server 5.0.7 
• SCO UnixWare 7.1 
• IBM AIX 5.2 
• RedHat Linux Enterprise Server 4 
• Suse Unix Enterprise Server 9