You are looking at an earlier release.Unless you are an archaeologist, you probably want to check out the latest version of DWIM Perl for Windows.
Dwimperl-18.104.22.168-v6.exe, released on 2012.02.06.
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To get started with DWIM Perl, check out the Perl Tutorial
written by Gabor Szabo, the creator of DWIM Perl.