The WinDos unit allows easy access to most of the functions provided by
the MS-DOS operating system from 32-bit protected mode application. Also
WinDos unit emulates MS-DOS functions under OS/2 and Win32 using standard
API, provided by OS/2 and Win32 operating systems. Operations such as find
file, disk size or status, time and date, get environment strings, and more
are provided by the WinDos unit. It provides a PChar interface to the file
handling functions.