MPE Security Violation error

Hi All,
I am facing an issue on one of the HP3000 machines I am working
on , the following is my machine spec

RELEASE: C.75.00 MPE/iX HP31900 C.45.05 USER VERSION: C.75.01

I seem to be getting an error (MPE SECURITY VIOLATION) when

I try to access the Image database across accounts when another user is
using the database (but in read mode).
The following is the actual error
IMAGE RESULT AT %0000: CONDITION WORD = -1
MPE SECURITY VIOLATION
DBOPEN, MODE 5, ON ABDBX
PROGRAM = TSTUTM.RAJPRG.DSI2
SUBROUTINE = UTOPENDBX
LOCATION = DB OPEN

I am running a program (program is run from account1) which extracts data
from [dbase1.account1] and populates [dbase2.account2].Google gave me a
lead in the following link

http://docs.hp.com/cgi-bin/doc3k/BB171690020.12039/26

Though it is for "Information Access Server: Database Administration", there is
one section that talks about security issues ..


***********************************************************
*************
Security Issues.

Files can be protected by security measures that limit file access across
accounts. If this is the case, you can allow PC users to access data as
follows:

* Have users log into the group and account where the files of
interest reside.

* Allow selected MPE users read access to the files by using the
:ALTGROUP and/or :ALTACCT commands.

* Release the files with the :RELEASE command.

* Configure the file as a formal file designator, and have the users
set up file equations to direct the file to the actual file.

***********************************************************
***************
I would be very greatful if you can help me resolve this mystry, the following
are my thoughts


1. Does MPE restrict access to database files accross accounts
when "security " is turned on for a file
2. what exactly does the "security" feature for an MPE file actually mean ?
3. I get the MPE security violation error only when two users (one in account1
and another in account2) are trying to access the database in account1.

user1 = opening database in mode1
user2 = opening database in mode5


Request you to kindly assist me in finding out the cause.

Thanks in advance.

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