Possible False Positive?

Hi people my Nod has just picked up and deleted C:\Program Files\Microsoft Works\Inchtour.exe as a variant of Win32/TrojanDropper Agent.NDC trojan with update 1907 and of course works tour does not run now, anyone have any thoughts i have submitted it for a test but how will I know if it is or isnt just in case I have to restore it to get works tour running again?

 

All is sorted for now, just deleted after sending it to NOD for testing and reinstalled works (my wife uses that program so I can't dump it ) anyway everything scans clear on update 1908.