Yes, use Win32::Process. Signals are part of UNIX architecture and only sort-of almost work-ish on Windows (i.e. very badly).

Win32::Process::Create sets a process object as the first parameter, and that can be used for the wait (it is documented fairly well). Here is an example:

use Win32::Process;
use Win32;

my $ProcessObj;

my $worked = Win32::Process::Create (
   $ProcessObj,            # Process object 
    "C:\\myprog",          # full path name of child program 
   "C:\\myprog arg",       # command line 
    0,                     # inherit handles boolean
    NORMAL_PRIORITY_CLASS, # Creation flags
     ".");                 # working directory of child

die 'Error: '.Win32::GetLastError() unless $worked;

# Do some stuff

$ProcessObj->Wait(INFINITE);   # Wait for completion

my $ExitCode;
$ProcessObj->GetExitCode($ExitCode)    # Get child result
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