You can set the network settings with netsh via a Net::Telnet session. I use this script along side a form that feeds it the required info. You could try the registry with Win32::TieRegistry. Hope you can pull some insight out of this example where I set the wins/dns via telnet... then we login via Win32 Remote Term and just run the bat file that executes the netsh static ip line and cleans the .bat off the desktop. I suppose you could execute it the netsh static if you were on the same subnet... but we are not, and telnet session closes before the command executes.

#!/perl/bin/perl

use Net::Telnet;

use CGI qw(:all);



#my @rv=`serverconfig.pl $host    $newip  $password $hostname $netmask
+ 
#             $gateway $dbdns1 $dbdns2   $dbwins1  $dbwins2`;


my $username = "administrator";

my $host       = "$ARGV[0]";
my $newip      = "$ARGV[1]";
my $password   = "$ARGV[2]";
my $servername = "$ARGV[3]";
my $netmask    = "$ARGV[4]";
my $gateway    = "$ARGV[5]";
my $dns1       = "$ARGV[6]";
my $dns2       = "$ARGV[7]";
my $wins1      = "$ARGV[8]";
my $wins2      = "$ARGV[9]";

my $t = Net::Telnet->new(Timeout =>5, Prompt=>'/\>/');
my $ok;

$ok = $t->open($host);
$ok = $t->login($username, $password);

$ok  = $t->cmd("netsh interface ip add dns \"Production LAN\" $dns1 in
+dex=1");
sleep 2;
$ok  = $t->cmd("netsh interface ip add dns \"Production LAN\" $dns2 in
+dex=2");
sleep 2;
$ok  = $t->cmd("netsh interface ip delete wins \"Production LAN\" all"
+);
sleep 2;
$ok  = $t->cmd("netsh interface ip add wins \"Production LAN\" $wins1 
+index=1");
sleep 2;
$ok  = $t->cmd("netsh interface ip add wins \"Production LAN\" $wins2 
+index=2");
sleep 2;


$ok = $t->cmd("echo netsh interface ip set address \"Production LAN\" 
+static $newip $netmask $gateway 1 > c:\\\"Documents and Settings\"\\A
+dministrator\\Desktop\\set_ip.bat");
sleep 2;

$ok = $t->cmd("echo erase set_ip.bat >> c:\\\"Documents and Settings\"
+\\Administrator\\Desktop\\set_ip.bat");
sleep 2;
$ok = $t->cmd("exit");
sleep 1;
$t->close;

print redirect("admin.cgi?query=$args");
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JamesNC Update... FYI, You don't ever need to reboot a machine when you change it's IP address... You will only have to do that if you change the hostname.