make a shortcut to the cgminer.exe on your desktop. right click and open properties for teh shortcut you created and then append that bit at the end. you can also add the pool/login to the shortcut like this example
C:\mining\cgminer-3.1.1-windows\cgminer.exe
-o http://pool:port -u username -p password --usb :10 change these values to yours for pool:port, username, password
also you might want to update to latest cgminer version which is 3.3.1
http://ck.kolivas.org/apps/cgminer/to run at startup copy the shortcut you made to your startup folder (start menu) or just leave on your desktop for manual.