Things You'll Need
Instructions
Download the drivers and Wireless Multiboot application from the site in the "Resources" section. Save the files to your desktop and double-click to install.
Open the Control Panel from your computer's Start Menu. Choose "Classic View," choose "System," and open the "Hardware" menu. Open "Device Manager."
Click "Network Adapters" and scroll down the list until you find the name of the wireless modem or network card used by your computer. Right-click and choose "Update Driver."
Decline the connection to Microsoft Update if it is offered. Choose "Install from a list or specific location," and check the box marked "Include this location in the search." Click "Browse" and navigate to the directory containing the drivers from Step 1. Click "OK," then "Next," then "Finish."
Rename the demo you wish to play on Nintendo DS to "demo.nds" and place it in the "Data" folder of the Wireless Multiboot directory from Step 1.
Right-click the file "Wmb.EXE" and select "Create Shortcut." Add the text " -data demo.nds" to the end of the text in the "Target" box, without deleting any text in the box. Note the space at the beginning of the text.
Click "OK," then double-click the shortcut created in Step 6 to run it. Turn on your Nintendo DS and select "DS Download Play." Your demo will be available for download, and can be played until the next time you turn the Nintendo DS off.
Return your wireless modem or network adapter to its original driver settings by repeating Steps 2 to 4 with your modem or adapter's install CD in the drive of your computer. In Step 4, instead of pointing to the drivers on your desktop, browse to the directory on your install CD containing the device's original drivers. Click "OK," "Next" and "Finish" to re-install the device's original drivers and re-access the Internet.