Hello,
Is it somehow possible to schedule RemoveExistingProducts at a different
time depending on a condition?
For example, I tried to do the following:
<InstallExecuteSequence>
<FindRelatedProducts Before="LaunchConditions" />
<RemoveExistingProducts After="InstallValidate">
SOME_CONDITION
</RemoveExistingProducts>
<RemoveExistingProducts After="InstallFinalize">
NOT (SOME_CONDITION)
</RemoveExistingProducts>
</InstallExecuteSequence>
But got error LGHT0091 : Duplicate symbol 'WixAction:Install
ExecuteSequence/RemoveExistingProducts' found.
Am I trying to do something that's not supposed to work that way? The
reason why I wanted to schedule it in a different place depending on a
condition was that I might need to uninstall a very old product that has
very different components/guids than the new package. Uninstalling the
very old product after the new one gets installed
(After="InstallFinalize") has the side effect of deleting a few registry
entries. I would like to
a) schedule RemoveExistingProducts at an earlier time only in case the
very old product is detected, and
b) schedule RemoveExistingProducts after InstallFinalize in case we are
upgrading a newer product
Any ideas how to archive that? Of course I could just schedule
RemoveExistingProducts After="InstallValidate", but then upgrading newer
products gets very slow.
P.S. I'm talking about major upgrades.
--
Thanks,
Kalev
On 10/30/2009 09:22 PM, Blair wrote:
> Why do 4.0 and 5.0 use different UpgradeCodes? Generally your entire
> product-series should have the same UpgradeCode. It makes things like
> downgrade detection easier, and reduces the amount of stuff you have to keep
> track of over time.
>
> You can place a condition on the RemoveExistingProducts action which will
> either allow or block the action in its entirety.
>
> <InstallExecuteSequence><RemoveExistingProducts
> ...>condition</RemoveExistingProducts></InstallExecuteSequence>
>
> where "..." is your Before/After/Sequence attribute and "condition" is the
> condition you wish to use to enable/disable that action.
>
> Be sure to make any/all properties secure that you use in your condition
> that need to be passed either from the UI or the command-line.
>
> -----Original Message-----
> From: Frank Neumann [mailto:
[hidden email]]
> Sent: Friday, October 30, 2009 9:53 AM
> To:
[hidden email]
> Subject: [WiX-users] Tweaking RemoveExistingProducts depending on user input
>
> Our installer uses major upgrades as described in many Wix documents.
> I would like to add a little more comfort to the installer by giving the
> users the following choices:
>
> 1. Uninstall the previous major version (4.0) during install of 5.0 or
> 2. Have 4.0 and 5.0 installed side by side
>
> The install packages for 4.0 and 5.0 use different upgrade codes.
>
> Is there a way to tweak "RemoveExistingProducts" by user input?
>
> Best regards,
>
> Frank
>
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