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From: mkh6317@zeus.tamu.edu (HOWARD, MATTHEW KENDALL)
Newsgroups: comp.sys.mac.system
Subject: How to use Blesser with Sys 7.
Message-ID: <16443@helios.TAMU.EDU>
Date: 22 May 91 23:03:34 GMT
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Organization: Academic Computing Services, Texas A&M University
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News-Software: VAX/VMS VNEWS 1.3-4


Earlier I asked the net for a practical way to switch between
system 6.0.x and system 7.0.  Previous to S7.0 this was easily
done using the "Blesser" application.  It had ceased to function
under S7.0.

ewright@bach.convex.com (Edward V. Wright) and Scott E. Lasley 
<lasleyse@wam.umd.edu> were quick to provide a fix.  Thanks guys.
(This would appear to be a timely question as the answer has just
 appeared in INFO-MAC digest #114.)

In brief, the creator for the system file has changed from 'ZSYS' in
system 6.0.x to 'zsys'  (a case change) in system 7.0.  Blesser is
looking for 'ZSYS' and thus does not find the new system file.  

You could change the creator of the new system file but that seems
dangerous to me.  

The best suggestion was to make a special copy of Blesser specifically
for blessing S7.0.  Keep the original Blesser for blessing S6.0.x  Use
resedit to change the single occurrance of the string 'zsys' to 'ZSYS'
and you are in business.  The info-mac article further suggests that
you put the the appropriate copy of Blesser in the appropriate system
folder so that Blesser finds the correct system file right away.

It works for me.  Thanks again all.

Matt Howard