DOSSetDateAndTime
Sets the modification date and time for a file on the DOS partition
#include <nwdos.h>
int DOSSetDateAndTime (
int handle,
LONG date,
LONG time);
Returns 0 for success or DOS errors for failure.
DOSSetDateAndTime sets the last modified date and time on a DOS file. The value for the handle parameter is obtained through a call to DOSOpen.
DOSFindFirstFile, DOSOpen, utime (Multiple and Inter-File Services)