How can I perform a custom action in WiX that only executes on install or uninstall?

Question

I have two custom actions, one of which I'd like to execute when my product is installed and the other when it is uninstalled.

My custom action is currently called from a merge module after the "InstallFinalize", but this happens for both install and uninstall. I've tried adding the "NOT INSTALLED AND NOT UPGRADINGPRODUCTCODE" condition, but that gave me an error:

Error 2762. Cannot write script record. Transaction not started.

I've also tried attaching to other actions (for example, UnpublishComponents), but I can't find any that are unique to install or uninstall.

How can I fix this problem?

possible duplicate of [How to add a WiX custom action that happens only on uninstall (via MSI)?](http://stackoverflow.com/questions/320921/how-to-add-a-wix-custom-action-that-happens-only-on-uninstall-via-msi) — Yan Sklyarenko, Jul 02 '13 at 06:01

score 25 · Accepted Answer · edited May 23 '17 at 12:26

25

Try next
1. Only for Installation:

<InstallExecuteSequence>
<Custom Action="SomeAction" After="InstallFinalize">NOT Installed AND NOT REMOVE</Custom>
</InstallExecuteSequence>

2. For Uninstall try to use: Rob's answer

UPGRADINGPRODUCTCODE property is set only during RemoveExistingProducts CA.

edited May 23 '17 at 12:26

Community

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answered Jul 02 '13 at 12:02

Dimiano

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Thanks a lot, this is the way to do it. – Alan Spark Jul 03 '13 at 18:45

score 2 · Answer 2 · edited May 23 '17 at 11:47

2

The variable “INSTALLED” should be using is “Installed”. Find more information regarding the Install and uninstall conditions in the Stack Overflow answer How to add a WiX custom action that happens only on uninstall (via MSI)?.

edited May 23 '17 at 11:47

Community

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answered Jul 02 '13 at 05:42

Vinoth

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How can I perform a custom action in WiX that only executes on install or uninstall?

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