Incease the buffer size of the cmd window

[ssimop]

Dear Kevin, thank you very much for your ingenious advice. I am afraid I failed to run it (Win XP), with message :
Error in C:\Program Files\Quick Macros 2\winapi.txt: function not found
on function :
GetConsoleScreenBufferInfoEx

I attach herewith a .png file with a screen shot. I would appreciate it if you could advice me. Best regards.