my $url = "http://wfmu.org/listen.m3u?show=21788&archive=32709";

use LWP::Simple;
print "getting $url ...\n";
my $content = LWP::Simple::get($url);
die "Problem!" unless defined $content;
print "content: $content\n";

use POE qw(Component::RSSAggregator);  # bad line

__END__

With "bad line" commented out, it works:
 F:\cgi\wfmu>perl testget.pl
 getting "http://wfmu.org/listen.m3u?show=21788&archive=32709"
 content: http://archive.wfmu.org:5555/archive/NU/nu070117.mp3

With "bad line" present, it hangs:
 F:\cgi\wfmu>perl testget.pl
 getting "http://wfmu.org/listen.m3u?show=21788&archive=32709"