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Hi, how can i start it on Batocera/Retropie etc.  ? The lha file inside doesn´t work of course.
Is there a standalone lha file that i can use with whdload?

I've no idea. If they are Amiga emulators I presume they can handle ADFs, HDF or WHDLoad files. So one of those versions should work. Don't use the A500 Mini version though unless you know what you are doing.