From:	MERC::"uunet!WKUVX1.BITNET!MacroMan"  2-OCT-1992 12:01:30.76
To:	MACRO32 <MACRO32@WKUVX1.BITNET>,
	NSFNET-RELAY.AC.UK!systemk@uk.ac.anglia.va
CC:	
Subj:	Re: SET WATCH

> (This applies to VMS V5.0 - V5.4-2.)
>
> SET WATCH FILE modifies flags in the P1 cell PIO$GW_DFPROT via a $CMEXEC call.
>
> *Supposedly* this cell used to hold the process default protection but is
> now obsolete (spare).
>
> Flag bits:      0 - major
>                 1 - control
>                 2 - attribute
>                 3 - dir ops
>                 4 - dump (misc things)
>                 5 - quota
>
> The messages are written via supervisor-mode ASTs to SYS$OUTPUT.
>
> However... I know SET WATCH FILE worked under VMS V5.0 but it hasn't worked
> for me since V5.2. I've eliminated lack of CMEXEC privilege as the problem.
> SDA shows the cell as containing %Xfa00 - an appropriate value for process
> default protection. When I use SET WATCH FILE the cell doesn't change.

SET WATCH FILE has worked for me with all the recent VMS versions (we are
now at V5.5-1).

                                                          Arne

Arne Vajhxj                             local DECNET:  KO::ARNE
Computer Department                     PSI:           PSI%23831001304030::ARNE
Business School of Southern Denmark     Internet:      ARNE@KO.HHS.DK