Sorry, I forgot about Nod32 (see above).

My log should by here:
http://jdownloader.net:8081/pastebin...a636c10b367fa2

I tried to:

1) shut down Firewall
2) shut down Spybot
3) disable all guards of Nod32
4) give Jdownloader directory to special exception in Nod32

I´m still failed.