I need to do this myself from time to time so here you go:

#!/usr/bin/perl -w
use strict;
use Win32::OLE;

my $server   = 'my-server'; # Note '.' is localhost;
my $username = 'administrator';
my $password = 'isverysecret';

my $c = connectServer( $server, $username, $password );
show_running_service($c);
show_running_process($c);
#killProcess( $c, 2052 );

sub connectServer {
    my ( $server, $username, $password ) = @_;
    $server ||= '.';  # localhost
    my $locator = Win32::OLE->new("WbemScripting.SWbemLocator") 
        or die "Can't access WMI on local machine.", Win32::OLE->LastE
+rror;
    my $serverConn = $locator->ConnectServer($server, "root/cimv2", $u
+sername, $password) 
        or die "Can't access WMI on remote machine $server: ", Win32::
+OLE->LastError;
  return $serverConn;
}

sub killProcess {
    my ( $serverConn, $pid ) = @_;
    my $obj = $serverConn->Get( "Win32_Process.Handle=$pid" ) 
        or die "Could not get an object handle for $pid: ", Win32::OLE
+->LastError;
    $obj->Terminate();   # returns 0 on success and 0 on failure!
}

sub show_running_service {
    my $serverConn = shift;
    my $serviceSet = $serverConn->ExecQuery('SELECT * FROM Win32_Servi
+ce WHERE State="Running"')
        or die "Can't get process list from server: ", Win32::OLE->Las
+tError;
    for my $service ( in $serviceSet ) {
        printf "%s\n\tPID: %-6d  Start Mode: %s\n\n",
            $service->{Description}, $service->{ProcessId},$service->{
+StartMode};
    }
}

sub show_running_process {
    my $serverConn = shift;
    my $processSet = $serverConn->ExecQuery('SELECT * FROM Win32_Proce
+ss')
        or die "Can't get process list from server: ", Win32::OLE->Las
+tError;
    for my $process ( in $processSet ) {
        printf "%-6d  %s\n", $process->{ProcessId}, $process->{Descrip
+tion};
    }
}
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