I use ActiveState’s Perl 5.8.8 and for me the installation of Moose on Windows was very simple. I added "http://ppm.tcool.org/archives/" (or put here the URL of any repository of Win32 PPM packages) to the list of repositories and used the GUI to select and install Moose and all related packages. Check http://ppm.tcool.org/intro/register for details. No need to circumvent de GUI:-) I have tried a few examples from the Moose CookBook and it works fine.