-u --unicode_in              Read input file as UTF16 file
  -U --unicode_out             Write binary messages as UFT16
  -m --maxlength=<val>         Set the maximal allowed message length
  -n --nullterminate           Automatic add a zero termination to strings
  -o --hresult_use             Use HRESULT definition instead of status code definition
  -O --codepage_out=<val>      Set codepage used for writing text file
  -r --rcdir=<directory>       Set the export directory for rc files
  -x --xdbg=<directory>        Where to create the .dbg C include file
                               that maps message ID's to their symbolic name.