When you connect a USB Flash memory card reader, Windows should add a new drive letter for each card slot on the reader. Then when you insert a Flash memory card, it can be accessed as you would any drive on your system. You can drag and drop files to and from the Flash memory card.
Assuming you have Windows ME, 2000, XP, or Vista, installation consists of simply plugging the USB card reader into any available USB port and allowing Windows to install the Microsoft device drivers used by all standard USB Flash drives. After connecting the reader, Windows will setup the appropriate device drivers and add drive letters. Double-click on "My Computer" and you should find the new drive letters which will usually be identified as "Removable".