http://www.perlmonks.org?node_id=1002520


in reply to Re: Launching multiple programs from Perl script
in thread Launching multiple programs from Perl script

Proc::Background does not appear to like spaces in the file name. However, I found another post on this and it resolved my issue with the spaces. Re: Proc::Background does not take file path with spaces

And here's the final, working code example for anyone else who comes along.
foreach ( keys %bridges ) { if ( $bridges{$_} ) { my $cmdStr = Win32::GetShortPathName("C:\\Some Path\\$_\\Some +File.exe"); my $proc1 = Proc::Background->new($cmdStr); } }