P:\test>296091 Filter::Test loaded HELLO WORLD FROM main P:\test>296091 Filter::Test loaded HELLO WORLD FROM main Filter::Test loaded Use of uninitialized value in concatenation (.) or string at d:/Perl/lib/Filter/Simple.pm line 156. Use of uninitialized value in concatenation (.) or string at d:/Perl/lib/Filter/Simple.pm line 156. String found where operator expected at (eval 5) line 1, near "PRINT 'JUST ANOTHER PERL HACKER'" (Do you need to predeclare PRINT?) P:\test>