It sounds like you're running an ActivePerl 6xx build (based on perl-5.6). If so, you need to use a different repository: 
 C:\> ppm install http://theoryx5.uwinnipeg.ca/ppmpackages/ppt.ppd

[download]

In reply to Re^2: How to Install Perl Power Tools on AS Perl by randyk
in thread How to Install Perl Power Tools on AS Perl by perlAffen

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