RetroArch not supported system help? Sega Mega Drive Japan

[CamoUchiha]

Hi Guys, I am trying too add Sega Mega Drive Japan too my hyperspin but I am having all sorts of problems with this one which should have been quite straight forward.  
First off all I was getting troubles saying that Sega Mega Drive Japan is not a supported system name even though I have added it too the Retroarch AHK File and no games play atall apart from the systems I already have.
I changed the system name through rocket launcher too 'Sega Mega Drive' and that allowed my to play games through Rocket Launcher but when I try on Hyperspin it points too my old drive.
I recently put my whole hyperspin setup on a new hard drive and redirected everything but for some reason Rocket Launcher thinks it is still aiming at my K: Drive when I am now using my H: Drive. 
Can anyone help with this? 
Either getting the system to work as Sega Mega Drive Japan or redirecting Retroarch.  
Or both would be good if possible
 

[CamoUchiha]

That was exactly it,
Thanks @Agent47 
Real heros don't wear capes