Well, I don't really like it either.  Anyway, it already has an arg, I use it all the time.

Here's what I would make it say something along these lines:
```bat
@echo off
set LOGFILE=ppsspp.log

del "%LOGFILE%" 2> NUL
if exist PPSSPPWindows64.exe (
    PPSSPPWindows64.exe --log="%LOGFILE%"
    goto exit
)
if exist PPSSPPWindows.exe (
    PPSSPPWindows.exe --log="%LOGFILE%"
    goto exit
)

echo Unable to find PPSSPPWindows.exe.
pause

:exit
```

-[Unknown]