I use it with the Advanced Launcher Addon. It’s works just fine, point it to the exe, here is my config for NES:
<launcher>
<id>37689beb88452605c03989f0114141bb</id>
<name>Nintendo Entertainment System</name>
<category>f9471c3acbe634d64f6c47e4ce6bce67</category>
<application>C:\Games\Emulators\RetroArch\retroarch.exe</application>
<args>"%rom%" --config config\htpc-leo\htpc-leo.cfg --appendconfig config\htpc-leo\htpc-leo_default.cfg -D -L libretro
estopia_libretro.dll</args>
<rompath>C:\Games\Emulators\Games\Console\Nintendo Entertainment System\</rompath>
<thumbpath>C:\XBMC\Launcher\Profiles\HTPC Leo\Thumbs\</thumbpath>
<fanartpath>C:\XBMC\Launcher\Profiles\HTPC Leo\Fanart\</fanartpath>
<trailerpath></trailerpath>
<custompath></custompath>
<romext>zip</romext>
<platform>Nintendo Entertainment System</platform>
<thumb>C:\XBMC\Launcher\Artwork\R\RetroArch\Controllers\Nintendo NES.png</thumb>
<fanart></fanart>
<genre></genre>
<release></release>
<publisher></publisher>
<launcherplot></launcherplot>
<finished>false</finished>
<minimize>false</minimize>
<lnk>true</lnk>
<roms>
<rom>
<id>5e4a078c229fb9adb4210f3c1329ba51</id>
<name>Mega Man</name>
<filename>C:\Games\Emulators\Games\Console\Nintendo Entertainment System\Mega Man (USA).zip</filename>
<thumb>C:\XBMC\Launcher\Profiles\HTPC Leo\Thumbs\Mega Man (USA).jpg</thumb>
<fanart>C:\XBMC\Launcher\Profiles\HTPC Leo\Fanart\Mega Man (USA).png</fanart>
<trailer></trailer>
<custom></custom>
<genre>Shooter</genre>
<release>1987</release>
<publisher>Capcom Co., Ltd.</publisher>
<gameplot>Mega Man was created in Japan, where he is known as Rockman.</gameplot>
<finished>false</finished>
<altapp></altapp>
<altarg></altarg>
</rom>
<rom>
<id>156511dca9116ab9b6e33e091329a60b</id>
<name>Mega Man 2</name>
<filename>C:\Games\Emulators\Games\Console\Nintendo Entertainment System\Mega Man 2 (USA).zip</filename>
<thumb>C:\XBMC\Launcher\Profiles\HTPC Leo\Thumbs\Mega Man 2 (USA).jpg</thumb>
<fanart>C:\XBMC\Launcher\Profiles\HTPC Leo\Fanart\Mega Man 2 (USA).png</fanart>
<trailer></trailer>
<custom></custom>
<genre>Shooter</genre>
<release>1989</release>
<publisher>Capcom Co., Ltd.</publisher>
<gameplot>This game is the sequel Mega Man, which was released for the NES in 1987.</gameplot>
<finished>false</finished>
<altapp></altapp>
<altarg></altarg>
</rom>
<rom>
<id>ee25c6e1b2c2b584f505a7d5eafef567</id>
<name>Mega Man 3</name>
<filename>C:\Games\Emulators\Games\Console\Nintendo Entertainment System\Mega Man 3 (USA).zip</filename>
<thumb>C:\XBMC\Launcher\Profiles\HTPC Leo\Thumbs\Mega Man 3 (USA).jpg</thumb>
<fanart>C:\XBMC\Launcher\Profiles\HTPC Leo\Fanart\Mega Man 3 (USA).png</fanart>
<trailer></trailer>
<custom></custom>
<genre>Shooter</genre>
<release>1990</release>
<publisher>Capcom Co., Ltd.</publisher>
<gameplot>Mega Man returns for his largest adventure to date in Mega Man 3. The surprisingly resilient Dr. Wily has concocted yet another plan for world domination: tricking Mega Man's creator, Dr. Light, into giving him the plans needed to build an indestructible robot. Mega Man must now battle eight new mechanical minions before confronting Dr. Wily's latest creation. As with the two previous games in Capcom's platform shooter series, you are free to tackle the eight initial stages in any order.Gameplay in each side-scrolling stage once again involves fighting your way to the boss, defeating it, and acquiring its signature weapon for use on subsequent stages. In addition to jumping and shooting, the Blue Bomber can now perform a slide maneuver. He can also call on a new robotic canine sidekick named Rush. This powerful pooch can switch into the equivalent of a springboard, submarine, or helicopter to help you clear each area. Complete all eight stages to reveal an additional four levels featuring the android adversaries from Mega Man 2.</gameplot>
<finished>false</finished>
<altapp></altapp>
<altarg></altarg>
</rom>
<rom>
<id>2174e730ba1f17b62a2abee117b7f415</id>
<name>Mega Man 4</name>
<filename>C:\Games\Emulators\Games\Console\Nintendo Entertainment System\Mega Man 4 (USA).zip</filename>
<thumb>C:\XBMC\Launcher\Profiles\HTPC Leo\Thumbs\Mega Man 4 (USA).jpg</thumb>
<fanart>C:\XBMC\Launcher\Profiles\HTPC Leo\Fanart\Mega Man 4 (USA).png</fanart>
<trailer></trailer>
<custom></custom>
<genre>Shooter</genre>
<release>1992</release>
<publisher>Capcom Co., Ltd.</publisher>
<gameplot></gameplot>
<finished>false</finished>
<altapp></altapp>
<altarg></altarg>
</rom>
<rom>
<id>0848dcda850232579ae27ea12d84672f</id>
<name>Super Mario Bros. 3</name>
<filename>C:\Games\Emulators\Games\Console\Nintendo Entertainment System\Super Mario Bros. 3 (USA).zip</filename>
<thumb>C:\XBMC\Launcher\Profiles\HTPC Leo\Thumbs\Super Mario Bros. 3 (USA).jpg</thumb>
<fanart>C:\XBMC\Launcher\Profiles\HTPC Leo\Fanart\Super Mario Bros. 3 (USA).png</fanart>
<trailer></trailer>
<custom></custom>
<genre>Action</genre>
<release>1990</release>
<publisher>Nintendo R&D4</publisher>
<gameplot>Often considered the pinnacle of 8-bit achievement, Super Mario Bros. 3 is an epic platformer that combines classic gameplay, excellent level design, stellar graphics, and memorable music to create a truly remarkable gaming experience. The most highly anticipated game of its time, it went on to sell over 18 million copies worldwide to become the best-selling game ever in the U.S. Unlike Super Mario Bros. 2, which diverted from the first game in both story and gameplay, Super Mario Bros. 3 returns to more familiar territory, with Princess Toadstool once again being kidnapped by Bowser and the Mario Bros. again coming to her rescue. Although the gameplay builds on the basic running and jumping of the original, a wealth of new features have been added, including a map screen, bonus games, the capability to store multiple power-ups, and, most importantly, the introduction of "suits" for Mario and Luigi to wear. These suits function much like the mushroom and fire flower power-ups in the original, endowing the character with additional powers such as flight, swimming prowess, and the ability to throw hammers. The game's huge world consists of eight distinctly themed lands, ranging from Grass Land to Ice Land to Pipe Land. The map screen allows players to complete certain levels out of order or skip them altogether, giving the game a nonlinear feel. In a two-player game, Mario and Luigi work together by alternating turns whenever a player finishes a level or loses a life, but they can also compete in a special version of Mario Bros., accessible by selecting an already completed level on the map screen. The only questionable aspect of the game's structure is that there is no password or save feature, meaning players have to finish the entire adventure in one sitting. This really can't be considered a flaw, but it does greatly add to the challenge of completing Super Mario Bros. 3's long quest.</gameplot>
<finished>false</finished>
<altapp></altapp>
<altarg></altarg>
</rom>
</roms>
</launcher>
