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Merged
pull merged 1 commit into from
Feb 16, 2026
Merged

[pull] dev from tauri-apps:dev #246

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5 changes: 5 additions & 0 deletions .changes/fix-wix-registry-search-order.md
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---
"tauri-bundler": patch:bug
---

Fix WIX installer registry search order so that the named `InstallDir` key takes priority over the NSIS default key, preventing install location from changing on updates.
12 changes: 8 additions & 4 deletions crates/tauri-bundler/src/bundle/windows/msi/main.wxs
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Expand Up @@ -70,12 +70,16 @@
<Property Id="ARPURLUPDATEINFO" Value="{{homepage}}"/>
{{/if}}

<!-- NOTE: The order of RegistrySearch elements below matters. In WIX, when multiple
RegistrySearch elements are listed under a single Property, the LAST successful
match wins. We list the NSIS default-key search first and the MSI InstallDir
search second so that the MSI-specific path takes priority when both keys exist. -->
<Property Id="INSTALLDIR">
<!-- First attempt: Search for "InstallDir" -->
<RegistrySearch Id="PrevInstallDirWithName" Root="HKCU" Key="Software\\{{manufacturer}}\\{{product_name}}" Name="InstallDir" Type="raw" />

<!-- Second attempt: If the first fails, search for the default key value (this is how the nsis installer currently stores the path) -->
<!-- First attempt: Search for the default key value (this is how the nsis installer stores the path) -->
<RegistrySearch Id="PrevInstallDirNoName" Root="HKCU" Key="Software\\{{manufacturer}}\\{{product_name}}" Type="raw" />

<!-- Second attempt: Search for "InstallDir" which takes priority if found (this is how the msi installer stores the path) -->
<RegistrySearch Id="PrevInstallDirWithName" Root="HKCU" Key="Software\\{{manufacturer}}\\{{product_name}}" Name="InstallDir" Type="raw" />
</Property>

<!-- launch app checkbox -->
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