I've tried to get recvpackets.txt from xroclient.exe:
1. I used JCV's RO Tools, with "xroclient.exe" (wich originally was xroclient.bin -> hidden .exe because they have updater) and yes, it's the direct access to the Login screen, gets me the following error.

2. I tried using Packet Extractor v3 as you can see in the following image, but "Start2.cmd" doesn't create the supposed "extractor.exe", so "Start3.cmd" creates an empty "recvpackets.txt", when i run "Start2.cmd i get: Search for Packet Len Map failed. (i couldn't upload the console error because it's insta-closed)

I also upload the xroclient.exe
Any help will be welcomed, thanks and sorry for my bad english :p