c:\> cpan App::cpanminus ... lots of messages... c:\> cpan Tk ... lots of messages... Writing Makefile for Tk 'nmake' is not recognized as an internal or external command, operable program or batch file. SREZIC/Tk-804.030.tar.gz nmake -- NOT OK CPAN: YAML::XS loaded ok (v0.35) Running make test Can't test without successful make Running make install Make had returned bad status, install seems impossible