(2) ZIP file structure invalid (eg disk corruption)
(3) Out of memory
(4) Internal logic error in ZIP compressor
(8) ZIP file invalid or insufficient memory
(10) Temporary File failure
(11) Input file read failure (eg virus scanner blocking access to archived files)
(12) Nothing to do
(13) Missing or empty ZIP file
(14) Output file write failure, possible disk full (or disk error)
(15) Could not create output file (eg bad ZIP filename or location)
(18) File not found or no read permission