FORMAT OF SETFLAG:

x[string]ab

WHERE:

x = the starting position in the flagset string
string = the string to check 
a = number of authorization flag string 
b = number of authorization flag to set on if true

EXAMPLE:

20[SYSOP]31

Will test Whether the string "SYSOP" appears in the flagset string
beginning at position 20. If so, authorization flag string A3 is set 
to "X-------", otherwise it becomes ".-------"

FLAGSET STRING:

Is 64 characters long.
May be any printable character EXCEPT "[" or "]" 
Is case-sensitive.

SAMPLE:

Entry:
KEY=S TYPE=200 
Opt Data=C:\FLAGSET\SETFLAG /q     &&1[SYSOP]31