INT 21 U - DR-DOS 5.0 - SET GLOBAL PASSWORD
AX = 4414h
DS:DX -> password string (blank-padded to 8 characters)
Desc:   Specify the master password for accessing files.
Note:   this call is identical to AX=4454h

See also: 214454

214414 - DR-DOS 5.0 - SET GLOBAL PASSWORD