for exmaple we will change language of previewer to russian
- find dir where languages are (for ex.)
1C:\Program Files (x86)\FastReport 5 VCL Enterprise\Res\Russian - open cmd and type
1cd C:\Program Files (x86)\FastReport 5 VCL Enterprise\Res\Russian - type
1mk.bat
you will recieve Russian.frc file - In runtime call
1uses frxRes; frxResources.LoadFromFile('russian.frc');