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http://www.openoffice.org/issues/show_bug.cgi?id=49861





------- Additional comments from [EMAIL PROTECTED] Thu Feb 14 22:44:58 +0000 
2008 -------
is -> andrixnet: Please do not mix up different things. For the problem, that we
have to keep the installation set on the system, it is not important, if we use
a wrapper around the installation set or not. For the OpenOffice.org
installation we use the Windows Installer service, nothing else, and this will
surely not be changed in the near future.
To simplify the download mechanism we introduced a wrapper by using nsis. We
could also use a simple zip or a selfextracting exe or whatever. This would
change nothing to this problem. After the Windows Installer installation set is
successfully unpacked on your system, it is started from this position on your
system. And exactly this position is important for the maintenance mode like
repair or adding components (for removing components or the complete product the
installation set is not required). You could for example first install Writer
and Calc and later decide that you also want to use Impress and Draw. For such a
scenario you need the source files again. And Windows Installer "knows" where to
find it, because it saved the location of the original installation set. 
The CD scenario you mention ("please insert the CD") works for OOo fine, but of
course you have to install OOo from the CD, not from your local hard drive. So
you simply have to use a CD containing OpenOffice.org or you have to download
it, use the nsis wrapper only for unpacking and burn the installation set on a
CD. Then you could start the installation from CD and if you later want to
repair the installation or add components, Windows Installer would tell you
"Please insert the CD."
But in our scenario the Windows Installer "knows" that OOo was installed from
<somewhere_on_your_local_hard_drive>. If we remove the installation set after
the first successful installation, this must lead to an error in maintenance
mode, because the Windows Installer knows that the installation set is no longer
available. In this error dialog you can select a new path to the installation
set.  So if you burned it on CD before removing it, you can now also use the CD.
But this is surely not what we want.
If you say, that "Repair" is not so important, well okay, we could discuss about
it. But I think, that adding components is not so unusual. So I think, that we
are not allowed to remove "Change installation" in maintenance mode.
But to stress it again. This has nothing to do with nsis or any other wrapper we
could use to simplify the download. Even if we include all cabinet files into
the msi database and use a one file Windows Installer installation set without
any wrapper: You have to start the installation from your local hard drive and
the installation set has to be saved exactly at this place.

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