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Rather than flushing immediately after every write, only flush before accessing the console. This improves the speed, particularly for programs that write character-by-character (which is basically every program using Microsoft's printf). Should it go wrong, there's a new mode to restore the immediate flush: `\e[1+h`.
ANSICON 
ANSICON provides ANSI escape sequences for Windows console programs. It
provides much the same functionality as ANSI.SYS does for MS-DOS.
Requirements
- 32-bit: Windows 2000 Professional and later (it won't work with NT or 9X).
- 64-bit: AMD64 (it won't work with IA64).