DSx86 v0.30 Beta is released. DSx86 is a PC emulator for Nintendo DS. It's purpose is to allow you to run old DOS games on your Nintendo DS game console.

DSx86 v0.30 Beta Changelog:
This is a major update of DSx86. This version emulates a 80286 processor, including the protected mode, so that it can run Windows 3.00a in Standard Mode. This should allow DSx86 to run many 16-bit Windows programs. Other changes include support for Smooth screen scaling mode in EGA 640x200 mode, and a faster Smooth scaling algorithm for MCGA 320x200 mode.

Download: DSx86.nds
Download: DSx86.ini
Download: DSx86_LW2.nds
Source: Here