[izpack-users] Detecting an upgrade

[Dirk.Moebius at dorma.com]

Hi,

I'm currently evaluating IzPack for a new software product. Looks great so 
far! Still two questions I couldn't answer myself by looking at the 
documentation:

1) Is it possible to detect a "re-install"? Ie. detect that the software 
has already been installed (by looking at the registry or some other 
well-known location). In this case I want the installer to behave 
differently. E.g. the installer should provide options to re-install the 
software or to uninstall it. Ideally it should also detect "upgrades", 
that is the case if the previously installed software has a lower version 
number than the one to be installed.

2) I see that IzPack optionally generates an uninstaller. On Windows, will 
those uninstallers automatically be registered in the Software registry?


Thanks, in advance, for your answers,

Dirk Moebius
-- 
Software Consultant
MBB Gelma GmbH, Germany
http://www.mbb-gelma.de/