The following targets can be set (the list depends on the platform for which the IDE was compiled):

Dos (go32v1)
This switch will dissapear in time as this target is no longer being maintained.
Dos (go32v2)
Compile for dos, using version 2 of the Go32 extender.
FreeBSD
Compile for FreeBSD.
Linux
Compile for linux.
OS/2
Compile for OS/2 (using the EMX extender).
Windows
Compile for Windows.

The currently selected target operating system is shown in the ”Target” menu item in the ”Compile” menu. Initially, this will be set to the operating system for which the IDE was compiled.