3d Traceroute

The greatest traceroute program ever. 3d traceroute display: multiple graphics modification options, statistics window: min, max, average, standard deviation and, history window with destination ping time, as list: the usual data view with lots of features, long period Ping and HTTP monitor, Whois query: everything with only one click, record and playback: record any trace and playback step by step, build in browser: and the browser is already built in., ASN inspector, NSLookup: with UDP and TCP. And zone transfer capability., Day and Night trace: Admins beloved toy, Command-line execution mode: full replacement for good old buddy tracert., passive OS fingerprinting, three different Portscanner (knows 3,612 well known ports), analyze eMail headers: against RBLs, Connection viewer: TCP, IP, UDP etc. statistics, HTTP Spy: query HTTP-headers and webpages, Atomic Clock Sync, ISO 3166 code browser, build in TELNET client, low CPU-Usage, everywhere a usefull context menu, Working with Windows 2000 and Windows XP, XP SP1 und XP SP2, (perhaps with Windows 98, 98SE or ME and NT4).

http://www.d3tr.de/

Super Xp Tweaking Guide - Sp2 Version

This was the first comprehensive, step-by-step XP tweaking guide on the net. It's over 3 years old and continues to evolve.

http://www.tweakhound.com/xp/xptweaks/supertweaks1.htm