Is there any way to send minimized cgminer msdos window, to SYSTEM TRAY??'
I have windows vista, i tried softwware like tray it! and it does not work
Firstly, there is no MS-Dos in Windows anymore. The correct term is "command line interpreter".
Your best bet might be going with
Sysinternals' Microsoft's Desktops
(1) app.
Create a second virtual desktop and move all those obnoxious text-mode windows to it, freeing your main desktop and taskbar.
The Desktops app lives only as an icon in the system tray.
With a little work you can set up a few separate, task-oriented desktops, like main desktop, bitcoin-mining desktop, porn desktop, and donating-to-cgminer-dev desktop.
Links:
(1) http://technet.microsoft.com/en-us/sysinternals/cc817881