Backtesting software that uses 15 minute time line?

I have seen posts here about different software for backtesting and was wondering how far they go back and how many different time choices you get. I have just an FXsol demo account and the accucharts go back a few years but only on the daily charts. If you want a fifteen minute chart you can only look at the last week. I want software I can backtest atleast the last year down to a fifteen minute chart. Is this realistic?

MT4 goes back about 8 months on the 15 min frame

Thank You.

This may sound like a dumb question.But is there a software system that goes back on it’s own and can give you win/loss/pip results.Instead of you going back and calculating it on your own?I hear so much about backtesting but I guess I never thought how you go about it I have always just went back on my charts and gathered the information on my own.

/bump on the above question.

tradestation. i use them and think they have the best platform for backtesting. check them out for yourself. they arent cheap though.