INT 21 - Novell NetWare 4.0 - SET FILE ATTRIBUTES (FCB)
AH = E4h
CL = file attributes
bit 0: read only
1: hidden
2: system
7: shareable
DX:DX -> FCB (see AH=0Fh)
Return: AL = error code

See also: 214301

21E4 - Novell NetWare 4.0 - SET FILE ATTRIBUTES (FCB)