DosBox Portable on XBMC with RomCollectionBrowser

To get DosBox Portable working with RomCollectionBrowser, I ended up making a separate config file for each game and setting up RomCollectionBrowser like so:

<RomCollection id="12" name="DOS">
    <emulatorCmd>D:\DOSBoxPortable\DOSBoxPortable.exe</emulatorCmd>
    <emulatorParams>-noconsole -conf "%ROM%"</emulatorParams>
    <romPath>D:\DOSBoxPortable\Data\settings\*.conf</romPath>

...

    <useEmuSolo>True</useEmuSolo>

...

</RomCollection>

You HAVE to use solo mode.

To disable the PortableApps splashscreen, copy the ini file from Other\Source to root
and change DisableSplashScreen=true

These settings would probably work for other add-ons/front-ends (like AdvancedLauncher or Hyperspin)