The function software-type
returns a string representing a generic name of the Operating System, or nil
if this cannot be determined.
On Microsoft Windows 98 and Millennium, software-type
returns "Windows"
. On Windows 8, Windows 7 and Windows Vista, software-type
returns "Windows NT"
. For more detail, use software-version
.
LispWorks User Guide and Reference Manual - 13 Feb 2015