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Bugs

Details:

In version 9.22 when adding several absolutely qualified files all filenames (without any path!) must be unique. A file "foo" that exists in different directories is reported by 7zip as "Duplicate filename", stopping the whole process.

Manipulating the current directory temporarily and using relative path names in no remedy: although the two files are then zipped into the archive, unzipping discovers a second bug: one of the two file is missing, the other one is at the wrong place. This is worse because it happens silently. (It's not a very good idea anyway because one might want to copy a particular directory that exists in different versions on two different drives when the approach would not work)

As it turned out the bug was reported a long time ago and is "explained" by the programmers with "technical reasons". As long as this bug is not fixed 7zip is not fit for purpose, and there is not much hope. Pity, it worked well.

Enhancements

• There should be a Delete method.

Version History

1.0.2 from 2011-09-23

• When a zip file was created by explicitly naming a large number of files (hundreds or more) then zipping got very slow.

1.0.1 from 2011-09-15

• Documentation improved

1.0.0 from 2011-08-31

• Very first release.