How to add new disctionary?

Hi, I would like to add polish specll checker to eM client. I have pl_PL.dic and pl_PL.aff files working in OpenOffice - but when i copied it into disctionaries folder i still can not use it. No polish on the list… When i choose “System settings” program is crashed. I try also to exchange my polish files with fr_FR files and choose french … but french can not be choose anymore - disapeared from the list… Is it possible to add polish dictionary to eM Client?

download Polish dictionary pack from:…. -> unpack this file using Winrar -> rename following files pl_PL.aff and pl_PL.dic(text document) to pl-PL.aff and pl-PL.dic -> copy these files to C:\Program Files (x86)\eM Client\Dictionaries and restart eM Client. Let me know if it works.