Windows XP SP3 30-days trial from Microsoft

Download:
http://download.microsoft.com/download/7/2/C/72C7BAB7-2F32-4530-878A-292C20E1845A/WindowsXPMode_en-us.exe

bf3726d684d3acb98185665123c9efcf

bf9ae7899a332c083676d7d973a4ab68ea4143b1

Use 7-zip to extract content from WindowsXPMode_en-us.exe
Go to source folder and extract again xpm

Go inside extracted folder and rename VirtualXPVHD to VirtualXP.VHD

5189623a8e5c6ff518cdd4759037f109

2bab92094c47421ed44b0c52fcc107b122aec37f

When create a new existing VirtualBox machine select Use an existing virtual hard drive file:

And here is the desktop with nice Internet Explore 6 icon. To really use the system you must install Guest Additions!

VirtualXP.VHD:

ba273d36b4916ab4e9af0417592dbd9e

585a7408b867b9702785f983f877306bf231f267