Native Dual-Monitor Wallpaper Support in Windows XP
Finally discovered a way to accomplish this without the need for third party software: Go to Display Properties (right click on desktop > Properties). Set the background to None and choose a dark solid color background. In the Desktop tab click Customize Desktop . Click the Web tab. Click New then specify which image you'd like to use. The image needs to be the same size as the full resolution of your combined displays, i.e. 2560x1024. Click OK [desktop items]. Click OK [display properties]. Drag the image on your desktop so that it fills both screens. Go back to Display Properties > Customize Desktop > Web tab. Check ' Lock desktop items '. Click OK [desktop items]. IMPORTANT : Click the X button. DO NOT CLICK OK OR APPLY . Occasionally after a reboot I'll have to redo these steps because Active Desktop breaks, but if you don't reboot very often it's not an issue. Recommendation : Google Image Search (with quotes) ...