Imported from previous forum
I got it, thanks Hanno.
Please always specify exactly where you got a download from. A new repository is published with every Extension Pack on http://www.fixtradingcommunity.org/pg/structure/tech-specs/fix-version/50-service-pack-2#Extensions. The latest repository is the one released with EP168 (http://www.fixtradingcommunity.org/pg/file/fplpo/read/33582/ep168-repository).
I'm downloading the FIX repository but the versions seems to be old. Is there any way of getting access to the latest repository for the most recent extension pack.