[wix-users] Component IDs for Major Upgrade

[Ven H]

Thanks a lot for your response Edwin. In my case, only my file (content /
version) changes and not key paths. Also, I am setting the Schedule
attribute on the MajorUpgrade element to afterInstallFinalize. Hence, I
believe I should not change the Component Guids. Right?

Regards,
Venkatesh

On Thu, Dec 7, 2017 at 10:49 PM, Edwin Castro via wix-users <
wix-users at lists.wixtoolset.org> wrote:

> Note you *MUST* change the component GUID if the component changes in any
> way (including key path) with the exception of a file's version.
>
> If the component hasn't changed at all but the file's version changed, then
> the component GUID must not change if you schedule RemoveExistingProducts
> before InstallFinalize. This is required because Windows Installer will
> reinstall the component first (including increasing ref counts) and then
> uninstall components at the end (decreasing ref counts). If you change
> anything about a component other than the file's version, then you are
> breaking the component rules and upgrades will not work properly.
>
> If you schedule RemoveExistingProducts after InstallInitialize, then your
> old product is completely uninstalled before the new product is installed.
> In this case you don't have to be so strict with the component rules
> because your ref counts never go up higher than 1. The downside of this
> approach is that you completely uninstall the old product and that might
> have effects you didn't expect like configuration and data files might be
> deleted and recreated.
>
> --
> Edwin G. Castro
>
>
>
> On Wed, Dec 6, 2017 at 12:27 PM, Hoover, Jacob via wix-users <
> wix-users at lists.wixtoolset.org> wrote:
>
> > Depends on when RemoveExistingProducts is scheduled and if the new
> install
> > has a component in the same key path but a different component id.
> >
> > Best rule of thumb is 1 file per component, and let WiX generate stable
> > GUID's (ala *).  This will cause any change in the key path to get a new
> > GUID.
> >
> > -----Original Message-----
> > From: wix-users [mailto:wix-users-bounces at lists.wixtoolset.org] On
> Behalf
> > Of Paul Mumford via wix-users
> > Sent: Wednesday, December 6, 2017 2:18 PM
> > To: WiX Toolset Users Mailing List <wix-users at lists.wixtoolset.org>
> > Cc: Paul Mumford <paul.mumford at gmail.com>
> > Subject: Re: [wix-users] Component IDs for Major Upgrade
> >
> > Yeah think so, the only guid that needs changing is the package (which I
> > found easier to just use * to generate a new one) and change the major
> > version. As long as you never change the upgrade guid. Someone confirm
> > please because im no longer in that contract and cant see the source code
> > anymore. I did have that all written down in comments in the package
> after
> > r&d.
> >
> > On 6 December 2017 at 17:35, Ven H via wix-users <
> > wix-users at lists.wixtoolset.org> wrote:
> >
> > > Do the component Guids need to be the same for Major upgrade?
> > >
> > > Regards,
> > > Venkatesh
> > >
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