a packed exe file, can't be loaded normally

[kcynice]

i have a packed exe file with a unknown packer, so i have to unpack it by hands. But when i open it using OllyDbg, it can't stop at the EP, OD has running status. Here, the exe has not a GUI, so i can see nothing. This exe file is attached to another program, when the other program(main program) start, this exe would be invoked. I want to use od to attach this sub-process, but i can't find it in the attach window of OD, although i can see both of the two process in task manager's process list. So, i want to know why? and how to resolve it?Thanks.

Regards,