Thanks, I done , it's that. Regards

Thanks, but my dos program not a game and I need to change window size without FULL SCREEN. Thank you for your patience.

1. OK, I find dosbox-0.74.conf file, but changing scaler from normal2x to normal3x don't change window size? 2. Second question: Manual says to move config files to another location. Where can I configure the location of the config file? Can you help me? Thanks in advance.

I run one program with DOSBOX but size of the window is too small. I wanted to know if is possible to adjust the dimensions of the window of DOSBOX. Thanks S.O. Windows 7 Ultimate 64 bit DOSBOX 0.74