Hi
I'm trying to uninstall an old app that was made with suxxx NSIS installer
and need to upgrade it to MSI. What could be the best way? I tried to make a
registry search and set the UNINSTALLNSIS property.
I ran MSI with debug mode and see the property has been set:
MSI (c) (78:40) [15:40:42:577]: PROPERTY CHANGE: Adding UNINSTALLNSIS
property. Its value is 'C:\Program Files (x86)\MyApp\uninstall.exe'.
But the Condition Message I have added for debugging does not popup. I tried
"UNINSTALLNSIS" and "UNINSTALLNSIS AND NOT Installed" both no success. This
should only be evaluated on install as a side note.
<Property Id="UNINSTALLNSIS">
<RegistrySearch Id="UNINSTALLNSIS_REGSEARCH" Root="HKLM"
Key="SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MyApp"
Name="UninstallString" Type="raw" />
</Property>
<Condition Message="Previous version of MyApp installed.">UNINSTALLNSIS AND
NOT Installed</Condition>
Here is the full example about what I planed to do:
<Property Id="UNINSTALLNSIS">
<RegistrySearch Id="UNINSTALLNSIS_REGSEARCH" Root="HKLM"
Key="SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\MyApp"
Name="UninstallString" Type="raw" />
</Property>
<Property Id="QtExecCmdLine" Value="UNINSTALLNSIS /S"/>
<CustomAction Id="QtMyAppUninstallWithNSIS" BinaryKey="WixCA"
DllEntry="CAQuietExec" Execute="immediate" Return="check"/>
<InstallExecuteSequence>
<Custom Action="QtMyAppUninstallWithNSIS" After="InstallInitialize"/>
</InstallExecuteSequence>
I also need to run RemoveFolderEx somewhere directly after the silent
uninstall custom action as these NSIS uninstall is *very* buggy... many
stale files in there. Any chance to get this RemoveFolderEx executed only if
the app is removed with NSIS silent setup so I do not need to run
RemoveFolderEx On="install"? A newbie example would be of great help.
This has been tested on WiX 3.6.1922.
Regards
Marc
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