https://www.ingber.com/utils_zip.txt

unzip algorithms will expand .zip files and archives, but not .gz or .Z files.
(See gzip.txt for utilities to expand those files.)

You likely must use at least version pkunzip 1.93a or unzip 5.0 to
extract files from ASA.zip.

DOS zip utilities can be obtained from
ftp.uu.net:/systems/ibmpc/msdos/simtel/zip.

The VMS binary unzip-vms.exe can be obtained from
ftp.spc.edu:[.macro32]unzip.exe.

$Id: utils_zip.txt,v 1.2 2010/07/17 02:02:04 ingber Exp ingber $