[wpkg-users] wpkg - how to upgrade between different products like 'firefox 3' to 'firefox 4'?

[Urs Rau (UK)]

Hi Paul,

On 31 Aug 2011, at 20:26, Paul McGrath wrote:

> All the firefox versions just upgrade by uninstalling the older version during the self contained installation.  We have only ever had one 'firefox', 'adode reader', 'flash player' etc.... package.  You just create a 'firefoxv2' package for your test system and once I've proven it installs then rename it to 'firefox'.

Yes, in hindsight, that is 100% what we should have done. But back in the firefox 1 and 2 and 3 days it was actually 'common' to be on a specific version and to have different groups of users on different versions because of add-on/extension dependencies etc. 
And in some ways that problem is still with us. We can usually upgrade some (most!) of our users to the latest firefox, but some workplaces are dependant on add-ons or extensions that aren't always available in a timely fashion for the latest version.

> As another reply stated you can put an uninstall 'msiexec /x {???????}' as an install line to remove the previous versions with error trapping if they don't exist.

Yes, thanks, that should work for adobe reader switch from 9 to X, thanks. But I don't think thunderbird and firefox are msi installs.

Regards,


-- 
Urs Rau