Quotetracker

Quotetracker is a popular free stock quote and charting program. It intergrates various datafeeds from some of the most well know brokers and you can see real-time streaming quotes once your broker or datafeed provides it. You can even get Level II on it.

So far, I have not seen any scanning capability but still it's a nice free program to have.
The free program displays advertisement in a banner on the software itself. But if you want no advertisement then the registration fee is $60 a year. If you have a TDAmeritrade account with $2500 plus in it, then it's free.

As I understand, TDAmeritrade is now the owner of Quotetracker.

I've also learnt that Traders Coach Applied Reality Trading program runs on Quotracker.

Go to Quotetracker.com to learn more about it and download software free.