Getting started with Arduino UNO
From MCS Wiki
				
								
				
				
																
				
				
								
				  Procedure
 
- Download Arduino Software (which included the USB driver for Arduino UNO and AVRDUDE)
 - http://arduino.cc/en/main/software
 - Create an folder Arduino e.g. C:\arduino-1.0.3
 - Copy the Arduino files into C:\arduino-1.0.3
 - The drivers can be found under C:\arduino-1.0.3\drivers (not the FTDI USB Drivers)
 - If the Arduino UNO was already connected then use following help http://arduino.cc/en/Guide/UnoDriversWindowsXP which is similar to Windows7 or Windows8 procedure.
 - AVRDUDE can be found in folder: C:\arduino-1.0.3\hardware\tools\avr\bin
 - http://wiki.mcselec.com/Getting_started_with_Arduino_and_WIZ820io#First_.22Hello_World.22_Program