The platform of the operating system on the computer.
<computer>
This property returns "win" if running on Windows and "mac" if running on Mac OSX.
The following conditionally includes a script file when run on Windows:
<include>
/ precondition = [computer.platform=="win"]
/ file = "winvideos.iqx"]
</include>
The following conditionally includes a script file when run on Mac OSX:
<include>
/ precondition = [computer.platform=="mac"]
/ file = "macvideos.iqx"]
</include>