Alex,
Excellent suggestion. I've implemented the suggestion (see below). Is
this essentially deferring an install action until the moment that the
uninstall starts? The CustomAction events fire correctly ("caInstall" on
install, and "caUninstall" on uninstall) and the command line options
are correctly passed and handled by the executable.
On Vista, however, the "caUninstall" event fires before the UAC prompt,
which appears to cause the uninstall to run under different privileges.
Is it possible to trigger the uninstall action later in the uninstall
process? (BTW - I've tested setting the "Impersonate" attribute to "yes"
with no change in behavior.)
<Binary Id="binInstallExe"
SourceFile="..\Build\Release\Install.exe" />
<CustomAction Id="caInstall"
BinaryKey="binInstallExe"
ExeCommand="/install"
Execute="deferred"
Return="check"
HideTarget="no"
Impersonate="no" />
<CustomAction Id="caUninstall"
BinaryKey="binInstallExe"
ExeCommand="/uninstall"
Execute="immediate"
Return="check"
HideTarget="no"
Impersonate="no" />
<InstallExecuteSequence>
<Custom Action="caInstall" Before="InstallFinalize">NOT
(REMOVE="ALL")</Custom>
<Custom Action="caUninstall"
After="InstallValidate">REMOVE="ALL"</Custom>
</InstallExecuteSequence>
-----Original Message-----
From: Alex Shevchuk [mailto:shevc...@live.com]
Sent: Thursday, July 02, 2009 2:09 PM
To: 'General discussion for Windows Installer XML toolset.'
Subject: Re: [WiX-users] Custom action behavior on Install vs Uninstall
>Can a Type 18 custom action have a dynamically designated command line
>property such that the target executable of the custom action is aware
>that it is being executed during installation or uninstallation? If so,
>what internal variable can be used to determine the current condition
of
>the MSI?
Hi Alan,
Instead of changing target, schedule two custom actions: one conditioned
on
running during fresh install (and maintenance install if needed) and
another
one conditioned on uninstall.
See http://msdn.microsoft.com/en-us/library/aa368013(VS.85).aspx for
details.
Alex
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