This is a list of utilities I have come across and keep finding useful. There really here for my own reference but they may be useful to you, enjoy.
DVD/CD Tools
DVD Decrypter
Magic ISO
ISO Recorder
HandBrake
Exchange/Outlook
KeyFinder
Extracts product keys from the registry.
Rebuild Outlook Autocomplete Cache
Rebuilds the nick name file for autocomplete in outlook.
Exchange 2003 SP2 IMF Keyword Manager
Provides an interface for keywords spam blocking for Exchange 2003.
(runs setup from link)
AQADMCLI
A Microsoft provided tool to quickly clear Exchange queues. See here for more information on use.
OWAAdmin
A Microsoft Web application to manage Outlook Web settings for users from web interface gui.
Desktop
Intel CPU ID Utility
Intel CPU Utility for identifying CPU and the Intel technoglies it supports.
EASEUS Partition Master Home Edition (FREE)
Reparation tools for windows XP. We have used on 30+ Windows XP Professional PC’s works a treat.
UltraMon
Extends the taskbar in Windows XP/Vista/7 acorss to monitors.
Developement
Windows Mobile Developer Power Toys
Various tools for development with Windows CE based devices. (Not for Windows Mobile 7 Devices)
Various
Free 3GP Video Converter
Converts 3GP Video Files to AVI/MP4. For older mobile phones.
SendMail
Allows e-mail to be sent from the command line.
nLite
Windows Installation Customizer, creates slipstream images, useful when you may need to add sata drivers.
DSK2VHD
Microsoft tool that sucks a physical disk into a VHD file, great for complete system backups.
Windows 7 USB/DVD
Create a USB Windows 7 Bootable Pen Drive, Windows 7 ISO file required.
DOS-on-USB
Create a USB DOS Bootable Pen Drive.