It effectively emulates the dual-processor architecture of the original DS.
Go to File > Open and select your legally owned DS backup (.nds file). Download IDeaS – Nintendo DS Windows Emulator U...
It handles a massive library of DS titles with impressive accuracy. Download IDeaS – Nintendo DS Windows Emulator U...
Grab the latest build of IDeaS from a trusted emulation site. Extract: Unzip the folder to your preferred location. Download IDeaS – Nintendo DS Windows Emulator U...