The Useful Utility Page

(Updated 14.09.2012, 05.09.2013)

File utilities:

Teracopy in action.

TeraCopy will copy your files, and also do a md5 check if you want. Integrates with Explorer too. Neat utiliy. not unlike NSIS's copy utility. Unfortunately, sometimes it does bug out when using it as a Shell-integrated copy-replacement. I recommend using this as a stand-alone app.

Locate32 in action, as you can see, it will search network drives too.

Locate32 is the file search utility you have been wanting since they took it away in Windows 7. This is like Windows XP's old file search, only vastly improved. It searches local disks and network mounts by default, but you can make any kind of setup with this program. For example, you can omit certain directories from a search, etc. Also comes in a 64 bit variant. 10/10 would search again.

TrueCrypt's interface.

TrueCrypt is one of the best encryption  packages out there. Protect your files with AES256 and just don't forget the password! Supports hidden volumes withing regular volumes.

Audio utilities

Recording & editing

Reaper for recording, has low latency, comprehensible UI and a good routing/monitoring interface. This is also the only recorder I have at the moment which actually works with my studio setup.
Audacity and CoolEdit for secondary editing. CoolEdit used to be my favourite (now Adobe Audition) but it did not play nice with my hardware this time)
Traders Little Helper + FLAC  and WAV workshop for audio traders.
winLAME - UI for the LAME mp3 codec

Musicians tools

GNU Solfege, for ear training

Playback & codecs

VLC and FooBar2000 for media playback, will probably reinstall WinAmp again purely for the fact that it is the only application I know that rewinds on pressing the arrow keys. (Vital for my guitar practice!)

flac codecs - this is what TLH uses.
OPUS codecs - A new codec

Windows Tweaking

Jumplist-Launcher will give you a custom JumpList on the Start+Menu. A jump+list is the sub+folder that a program creates on the Start-menu to for example let you access your last used files within that app. This utility will let you group and organize a custom Jumplist, to declutter your Start-menu.

Development

Visual SVN Server, sets you up with a working SVN server out of the box. Add and name your repo, and it's ready to go. I personally use this with Eclipse's SVN plugins. This is *actually* an out-of-the box setup, some of the SVN server packs I've seen doesn't actually work :)

TortoiseSVN, the definitive GUI client for SVN operations.

Portable Application Compilations

PortableApps.com, this is a huge collection of smaller apps and games. 

WSCC, Windows System Controll Centre, a compilation by NirSoft that includes all NirSoft itilities, as well as a comprehensive wrappe of all the SysInternals utilities.