Software

Currency Converter To Go
User-maintained database, providing conversion rates between most international currencies. Also produces wallet-sized conversion tables.
http://www.forumsoftware.com/cctogo.htm

Globex - Currency Exchanger
The Currency Exchanger in Globex supports all currencies (registered version). Exchange rates may be downloaded from the Internet. Also included with Globex is a World Clock, to show you the time in major cities from around the world.
http://www.cosmin.com/globex/

HaulTech Computer Services
A purpose designed, multi-user, multi-depot location, multi-currency software package reflecting the requirements of the busy, and demanding traffic office meeting both UK nationwide and International Haulage requirement.
http://www.haultech.co.uk/

JAZconvert Currency Conversion
Currency conversion service for e-commerce web sites.
http://jazconvert.com/

ssCurrConv ASP Component
Currency Converter ASP component that can use multiple currency conversion sites to extract data from. Many options can be configured such as caching, and site settings. [Shareware]
http://www.skybound.nl/products/ssCurrConv/

Toccata
Displays a vendor's catalog in any currency and accepts payment in foreign currencies at domestic rates. Includes free real-time rate feed to provide shoppers with the most current prices shown in their home currency.
http://www.toccata.com/

Wizu
Offers 2xCalc, a shareware calculator and currency converter for more than 160 countries.
http://www.wizu.com/