The EU2:Asian chapter, is not supported by Paradox, Typhoon games released that one. The other games are fully supported by Paradox.
However you should be able to patch the EU2 that came with Crown of the north, it is just that Paradox does not support that version as it was a SF release.
However you should be able to patch the EU2 that came with Crown of the north, it is just that Paradox does not support that version as it was a SF release.