D:\>perl -demo

Loading DB routines from perl5db.pl version 1.28
Editor support available.

Enter h or `h h' for help, or `perldoc perldebug' for more help.

main::(-e:1):   mo
  DB<1> use PPM::UI

  DB<2> p $INC{'PPM/UI.pm'}
d:/Perl/site/lib/PPM/UI.pm