Original schrieb:

Flyff ResEditor
A new resources files (*.res) editor

Features :
drag and drop files form/to explorer or between two ResEditor windows
create and edit res files
add/remove/replace files in the res file
you can drag and drop the book icon at the top right to another window to live create the res file

Known issues :
sometime, file deletion fails
bad files checksums
unknown 7 bytes

ToDo list :
add a rename file option
add live preview for bmp, png, jpg, tga, dds files
add common extensions (lnd, wld, dds, ...)
live editing of resource files
explorer extension, files associations

Links :
Flyff ResEditor (English) - 06/09/2009
Flyff ResEditor (Francais) - 06/09/2009

I'll release the source soon
Thanks to xadet for the res files structure.