That is not valid syntax for CPAN shell and that did not install Wx:: (well, you did install some part of Wx since you got Dynaloader and Windows to complain about a missing DLL import dependency on the XS part of Wx:: module). The correct command is "install Wx". As I rarely use CPAN shell, I can't help you any further. I dont think you installed the modules that you think you installed or you installed them with "copy and paste" which probably doesn't work.