Re: [Oorexx-devel] Announcing ooRexx 4.1.1 Release Candidate

[Mark M. <mie...@gm...>]

On Sun, Apr 1, 2012 at 7:46 AM, Mike Cowlishaw <mf...@sp...> wrote:

> Not really a bug, and for the next release probably ... I just tried the RC
> install, and do like the "quick install, don't change anything" option.
> Unfortunately it didn't work for me -- I'd closed all my command windows (which
> run Rexx as the shell), but forgot web servers and Wikis (which run Rexx as
> filters).  Hence, although the uninstall appeared to work fine, the install
> failed with 'unable to replace Rexx.dll' dialog (repeated x 5, I think).
>
> Cancelling the install and closing those things that were using Rexx worked, but
> I wasn't offered the 'quick install' options on the next try.

Hi Mike,

Yeah, that would happen.  In NSIS the install and uninstall programs
are completely separate.  For the quick install option, the installer
reads the ooRexx registry entries into memory.  If the registry
entries indicate a quick install is an option, then the current path
and PATHEXT are also read into memory.  Then the uninstall program is
called.

The uninstall program uninstalls everything, including removing the
installation directory from the path and .rex from PATHEXT.  It has to
because it is the same program that is run when the user wants to
completely uninstall.  When the uninstaller finishes, the instatller
regains control and starts installing.  The new ooRexx registry
entries are written to the registry after the files are all installed
okay.

So, in your case the new registry entries would not have been written.
 When the installer was run the next time, there would be no registry
entries to indicate a quick install was an option.  And, really it
would not be an option.  Part of what the installer would need to know
is exactly what directory the old ooRexx was installed in, which is
completely unknown at this point.

I'm not really sure if there is a good way, or even any way, to handle
this case.  I'll have to think about it.

--
Mark Miesfeld