This topic has been dead for a while, but I thought I'd say something because I just got my Mamewah working with CPS-3 1.0a by the Nebula creator. (Also, hello everyone again, I haven't posted on here in years

)
For my cfg, I came up with the following ini :
;LIST GENERATION SETTINGS
ROM Path = C:\EMULATION\CPS3\ROMS
ROM Extension = ZIP
List Generation Method = 0
;EXECUTION SETTINGS
Emulator Executable = C:\Emulation\CPS3\emulator.exe [name]
Send ROM Path = True
Send ROM Extension = False
Use Long Filenames = True
Use Quotes around ROM Filenames = False
Show DOS Box = 2
Default Options =
Extra Options #1 =
Extra Options #2 =
Controls.dat Viewer Filename =
Controls.dat Viewer Default Options =
Launch Controls.dat Viewer before Game = True
IPC Filename / Path =
Then in your emulator.ini for your CPS-3 emulator, make sure you have Autofull = 1 enabled. You will probably have to map a key to Alt+F4 to exit the program easily, but this is the best method I've come up with. The only reason why I don't like using Mame for CPS-3, is I haven't been able to find the proper no-chd files yet, and CHD cps-3 loading takes like 20 minutes a game

- hope this helps anyone else curious about this issue.