windows phone 7 - Launching a background agent from within the app -

As far as I understand, if you register a periodic task to deal with your WP7 live tiles, So it will not be updated any more than once every half hour, however, I would like to update the data which the background agent exits from the user app every time.

My scenario is that I have a live tile displaying the first entry in a planner - and what happens inside the user's app can be removed by the planner, or There can be a new front. Old information is not very attractive to live tile.

Is it possible - and if so how?

I do not know that this is what you are looking for.

When the user exits the app my app is updated. But then I am having such problems, as the user does not open the app for a few days, then it is not updated.

  Secure Override Zero OnBackKeyPress (System.ComponentModel.CancelEventArgs e) {Scholastic Priority = Chalettle. ActiveTiles.first (); Standard tiled data tile = new standardtile data (); If (primertyle! = Null) {tile.backtital = resin.greatstring ("livettitle"); Tile Backbackgroundmaze = new Uri ("/ background page", Urekhind.Relative); If (pCycMan.GetStartDate () == pCycMan.GetDefaultDate ()) {tile.Title = resMan.GetString ("liveTileNotTrackingStatus"); } Else {tile.Title = App.m_liveTileText; } Primary tile. Update (tile); }}