Wireshark · Ethereal-dev: Re: [Ethereal-dev] Win32 NSIS: calling old Ethereal uninstaller (if existing) before installing new

[Ulf Lamping <ulf.lamping@xxxxxx>]

Peter Johansson wrote:

> It is always nice when an installation program cleans up any old 
> *mess* before installing a new version. I would vote for this if it at 
> the same time would be possible to have altered user preferences and 
> colorisation rules survive to the new installation. I guess this means 
> updating the installer to record the user configured information 
> before uninstalling the previous version to be applied once the new 
> version has been installed.

That's what I thought too.

> Although I see some difficulties with this. Should the installer be 
> aware of version specific information? What I mean is that if the 
> 0.10.x installation contains a file that should be transferred when 
> installing 0.11.x but not transferred when installing 0.12.x then 
> specific information on how to handle different version transitions is 
> required in the installation package.
Don't understand this, and probably we don't have such a case (yet). 
Could you give an example?

Regards, ULFL