Rollback custom action not getting called when cancelling the MSI installation

Question

I'm creating MSI using Wix Toolset v3.11

I'm using two Custom Actions, a Deferred custom action and it's corresponding Rollback custom action. I'm calling a console application exe file for both the custom actions. If I'm closing the console app cmd window, the rollback custom action gets triggered and it's working fine.

But when I cancel the MSI installation itself, through clicking on Cancel Button of Progress Dialog, the rollback custom action don't trigger.

Here's the sample code:

<CustomAction Id="DoSomething" Execute="deferred" FileKey="abc.exe" ExeCommand="xyz" />
<CustomAction Id="DoSomething_Rollback" Execute="rollback" FileKey="abc.exe" ExeCommand="xyz_rollback" />

<InstallExecuteSequence>
      <Custom Action="DoSomething_Rollback" Before="InstallFinalize">TrueCondition</Custom>
      <Custom Action="DoSomething" After="DoSomething_Rollback">TrueCondition</Custom>
</InstallExecuteSequence>

I've tried the solution mentioned here - WIX - Run custom action on installation cancellation

When I set the OnExit="Cancel", it starts giving error (DoSomething_Rollback is a custom action whose source is an installed file. It must be sequenced after the CostFinalize action) and project doesn't build.

Christopher Painter Christopher Painter · Accepted Answer · 2020-06-03T18:09:17

You are probably scheduling the CAs wrong. It's hard to be sure without looking at the InstallExecuteSequence table in the built MSI. You are saying Rollback is before InstallFinalize and Deferred is after Rollback. That might get confusing.

Instead say Deferred is before InstallFinalize and Rollback is before Deferred.

Rollback custom action not getting called when cancelling the MSI installation

1 Answers