Recently installed the last free version of Zone Alarm for Windows xp (Ver. 14.3.119.000). Everything appears to work OK but am seeing 15 to 20 zero size files showing up in Application Control every day. Used to get a couple of them when updated software but now getting one or two for each application used. I remove them but they are back the next day. Should I be concerned or doing something different or just let them accumulate.?