DosSetFSInfo

#define INCL_DOSFILEMGR

USHORT  rc = DosSetFSInfo(DriveNumber, FSInfoLevel, FSInfoBuf,
                           FSInfoBufSize);

USHORT           DriveNumber;   /* Drive number */
USHORT           FSInfoLevel;   /* File system data type */
PBYTE            FSInfoBuf;     /* File system info buffer */
USHORT           FSInfoBufSize; /* File system info buffer size */

USHORT           rc;            /* return code */