I would really appriciate this feature:
Launch BitComet on Windows Startup if there are some active tasks
I think it’s self-explanatory why would one need it 
Look in Tools -->Options–>Integration where you will find several start-up options. If you check the “Start automatically when starting Windows” box, BitComet will take off as soon as you start up your computer and then restart all of your active torrents. Personally I usually check all of the boxes on that page except “Capture URL in clipboard” which is the perfect level of BitComet-Windows integration for me.
I took this suggestion to mean, “actually start only if there are active tasks pending”., but it would be better if you thought out and wrote down the sequence of events.
it’s cool feature to start bitcomet at startup if downloads are pending
and i use this feature regularly.
but is there any method to start bitcomet in hidden mode automatically or else i’ve to keep using boss key.
thanks
There isn’t. Probably won’t be, as it’s not such a hot idea: how would you tell the difference between failing to start and starting in bosskey mode?