MSC: unsigned _dos_write( int handle, void far *buffer,
					unsigned count, unsigned *nbytes )


	- prototype in dos.h

	- handle = opened file handle
	- buffer = buffer of data to write to file
	- count = number of bytes to write
	- nbytes = receives the number of bytes actually written
	- returns 0 on success or DOS error code on failure

	- Turbo C uses _write()
	- see	INT 21,40   _dos_open()  _dos_close()  _dos_read()