ViaThinkSoft Currency Converter
ViaThinkSoft Currency Converter is a library developed by Daniel Marschall which converts currencies. The latest exchange data is automatically downloaded and cached.
To use ViaThinkSoft Currency Converter, you need an API key from CurrencyLayer.com. Keys with limited access are available for free, and there are paid subscriptions available, too.
Usage for online applications, with PHP
For Windows users
If you are not a developer, you can download the ready-to-use demo EXE file.
For Windows developers
The Currency Converter is implemented as a Windows DLL (Source code for Delphi), which can be used by most other programming languages as well as VBA (Visual Basic for Applications). Therefore, you can use Currency Calculator in Microsoft Office products.
Download source code for usage in ...