Path: utzoo!mnetor!uunet!husc6!ncar!ames!pasteur!ucbvax!ean.ubc.ca!lebaron%tel.inrs.CDN
From: lebaron%tel.inrs.CDN@ean.ubc.ca (Gregory LeBaron)
Newsgroups: comp.os.vms
Subject: (none)
Message-ID: <95*lebaron@tel.inrs.cdn>
Date: 16 Mar 88 14:47:00 GMT
Sender: usenet@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 24

>>	I am looking for a system service or run-time library routine that
>>	will allow me to execute a second image.  I want to do this in such a
>>	way that the flow of control will pass entirely to the second image,
>>	and will return to the first image at the calling point after the
>>	second image completes. Neither CREPRC nor LIB$SPAWN seem to do this,
>>	which makes sense since their purpose is to create another process
>>	altogether.  I just want the SAME process to start executing a second
>>	image.  I'm sure I'm overlooking something obvious...

>LIB$DO_COMMAND
>LIB$RUN_PROGRAM
>							-- Jerry

I missed the first part of this discussion but there is a RTL routine
which might be appropriate: 
LIB$FIND_IMAGE_SYMBOL - read universal symbols from a shareable image
file and dynamically activate a shareable image into the P0 address
space of a process

There's an interesting discussion in the column VMS VIEWS, Digital
Review Feb 22 1988 (pg 86)

Greg
lebaron@tel.inrs.cdn