In a message dated 4/5/2006 7:56:14 A.M. Central Daylight Time,  
[EMAIL PROTECTED] writes:

>imagine what will happen when vendor #2 trips its abend routine and  decides 
to back >itself out.  The BEST it can manage would be to  return the 
environment to the state it >found it in... which won't do  vendor #3 any good 
at all 
(actually it will cause vendor #3 >some harm, as  well as the customer) and it 
might even mess up vendor #1
There must be some higher intelligence applied when backing itself  out.  
E.g., before returning the environment to the original state the  code must 
test 
if it has itself been front-ended after it was installed.   If so, then it 
cannot return the environment to the original state.  A  little imagination 
will 
yield the only viable solution.
 
Bill  Fairchild




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