I think Andrew had to manually add the windows files due to https://github.com/D-Programming-Language/installer/pull/41.
This maybe the reason why the zip version is newer, what's the number

The exception from Tango says 78.8. Which seems very high when I look here [1]. zipinfo says "6.3 unx" which seems to indicate version 6.3 and that it was created on Posix.

[1] http://en.wikipedia.org/wiki/Zip_%28file_format%29#Version_history

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/Jacob Carlborg