Some time ago i have found (but i don't remember how i have found) this setup package:
JDownloaderPortable64_Build_35650_ffmpeg_64bit_Multilingual.paf.exe
It's working good also at today....... i can check the Upgrade of Jdownload from app directly and i have correctly update my app to latest but i have see there's a little trouble.
When i exit from JD on Task Manager i see one process remain in execution.... JdownloadPortable.exe. I can Exit from JD correctly but if i want to relaunch the app i obtain an errors says another instance it's already in execution.
This some say how i can try to resolve this issue ?