package Proc::Background::Win32;
$Proc::Background::Win32::VERSION = '1.30';
# ABSTRACT: Windows-specific implementation of process create/wait/kill

...

use Win32::Process qw( NORMAL_PRIORITY_CLASS INFINITE );   # <---

...

##</code><code>##

[OSPrereqs / MSWin32]
Win32::Process = 0.04
Win32::ShellQuote = 0.003001