This code incorporates johngg's idea, and adds code-file-name based "grep".

use strict;
use warnings;
use Win32::Process::Info;
use Data::Dumper;

my $pio_2 = Win32::Process::Info->new ();
my @pids = $pio_2->ListPids ();
my @proc_info;
my @wantedInfoTypes = qw{
         Name
       WorkingSetSize
       UserModeTime
       KernelModeTime
      };
my @InterestingExecutables = qw{
    VISIO.exe
        cmd.exe
        notepad.exe
        skype.exe
        GoogleDesktop.exe
        wmplayer.exe 
        };


for my $pid (@pids) {
    @proc_info = $pio_2->GetProcInfo($pid);
    for my $info (@proc_info) {
        grep  /$info->{Name}/i, @InterestingExecutables or next; 
    for my $infoType ( @wantedInfoTypes )
    {
        print
           qq{\n$infoType => \n},
           q{-} x length $infoType,
           qq{$info->{$infoType}\n};
    }
    }
}
[download]

Output:

Name =>
----GoogleDesktop.exe

WorkingSetSize =>
--------------7118848

UserModeTime =>
------------90.5117802

KernelModeTime =>
--------------149.3085571

Name =>
----GoogleDesktop.exe

WorkingSetSize =>
--------------3760128

UserModeTime =>
------------62.3379996

KernelModeTime =>
--------------115.8931429

Name =>
----wmplayer.exe

WorkingSetSize =>
--------------45211648

UserModeTime =>
------------87.5009609

KernelModeTime =>
--------------72.3532638

Name =>
----GoogleDesktop.exe

WorkingSetSize =>
--------------7290880

UserModeTime =>
------------367.5071558

KernelModeTime =>
--------------239.1651331

Name =>
----Skype.exe

WorkingSetSize =>
--------------45948928

UserModeTime =>
------------3.8376246

KernelModeTime =>
--------------2.7144174

Name =>
----VISIO.EXE

WorkingSetSize =>
--------------56135680
--snip---
[download]

Note - there ARE INDEED multiple instances of googledesktop running on my PC.

Update:Ignore my hack - BrowserUk (++) posted much better code while I was hacking.