updates daily data to MetaStock (and compatibles) without requesting your attention. Quotes are in the chart when you open it with MetaStock

it runs on a yearly subscription basis

it works as a background process writing to multiple folders. It only requires an active internet connection

3 global market zones: Europe, America, Asia/Pacific

easy to use, fast and reliable

downloads from Yahoo! public data pages

unlimited testing period (folders being updated at random)