I used On Demand Server, it loads data into the charts and won't work with RadarScreen, I used the quote.com version. Software from Traders-Soft is very good, he gets it working before he releases it. I'm looking at Uniserver, it looks like the answer, realtime and history, transparent operation, future version should automatically fill gaps in data. It don't get better than that for what I'm doing. You can do things with that setup that you can't do with TS6.
I'm looking at Dyna Order too, it will automate orders to Interactive Brokers from a variety of software packages, just came out of the Beta stage, new versions are coming out every week, it should stabilize pretty soon.
Esignal has high quality first tier data and they will soon have one year of intraday and in a year will have two years' worth.
Tickdata? Other software? On Demand Server? Why?
Max