Vista - Task Scheduler - taskeng.exe command line

I have a scheduled task (to run synctoy) that opens a command line window and runs taskeng.exe - is there a way to have this run silent (without opening the command line window) or at least run minimized? I have no access to the actual command, and wouldn't know of a parameter or switch to use even if I did.

instead of opening the command line just change it to open taskeng.exe
on the task scheduler create new task, after that on the action tab at the top select run program and browse for taskeng.exe
should work fine

I have also just setup SyncToy 2.0 to run at log on, but the taskeng.exe window shows at logon. I'd like to hide it too, but i've never used Task Scheduler before and i don't really understand the above advice.

Could someone explain it in really simple terms for me? Is it suggesting i run 2 tasks? Or just change my existing task?

Thanks, Mark