> Am 04.04.2012 16:17, schrieb Bruno CHOQUET:
> > Falko,
> >
> > It's not a profil or host problem : i just want to uninstall Firefox
6.
> >
>
> Installing the latest version of Firefox will replace any previous
version.
>
Not always - I just debugged a user whose 10.0.2esr Firefox was installed
alongside 10.0.3esr. Nobody knows how this happened (both versions were
installed by WPKG) and it worked correctly on all the other machines. WPKG
sees the old version and reinstalled the new one every time - while always
keeping the old one. - But this is not a WPKG-bug.
Uninstalling MSI-installed software is easy even if you don't know the
UUID or don't want to manage lists of UUIDs - you can query the MSI
database via WMI and even uninstall this way (though it doesn't work very
well - I found it better to extract the MSI-ID from WMI and then calling
MSIEXEC /X).
Uninstalling non-MSI is a bit more tricky. Basically you have to parse the
Registry, find your UninstallString and call that, possibly adding any
Unattended switches. I use a script for those cases where I don't know the
exact path of the uninstaller. This comes in handy for software like
PDFCreator where you absolutely have to uninstall the previous version.
<install cmd='cscript uninstall.vbs "MySoftware" /SILENTSWITCH'>
<condition>
<check type='uninstall' condition='exists'
path='MySoftware'/>
</condition>
</install>
I'm not sure if I should post my uninstall.vbs because it could end up on
TheDailyWTF...
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