Indicates the type of operating system (OS) on which the application is running. Mac OS refers to Mac OS versions 8 and 9. Carbon refers to Mac OS X.
| Name | Value | Description |
|---|---|---|
| eInvalidTargOS | 0 | Invalid Target OS |
| eMacOS | 1 | Mac OS X |
| eWin31OS | 2 | Windows 3.1 |
| eWin95NTOS | 3 | Windows 95/NT |
| eSolaris1OS | 4 | Solaris 1 |
| eSolaris2OS | 5 | Solaris 2 |
| eHPUXOS | 6 | HP-UX |
| ePowerMaxOS | 7 | PowerMax |
| eLinuxOS | 8 | Linux |
| eIrixOS | 9 | Irix |
| eRhapsodyOS | 10 | Rhapsody |
| eBeOS | 11 | BeOS |
| eAIXOS | 12 | AIX |
| eOSF1OS | 13 | OSF1 |
| eVxWorksOS | 14 | VxWorks |
| ePharlapOS | 15 | Phar Lap |
| eCarbonOS | 16 | Carbon |
| eRTXOS | 17 | RTX |
| eWin64OS | 18 | Windows x64 |
| eLinux64OS | 19 | Linux x64 |