One Click Install Alpha by Geenz · Pull Request #5178 · secondlife/viewer

Geenz · 2025-12-19T22:52:39Z

as of = 2026-01-26 for PV deploy
build = https://github.com/secondlife/viewer/releases/tag/Second_Life_Project%2385298ebb-OneClickInstall
cohort = One Click Install
deployed = https://github.com/secondlife/viewer/releases/tag/Second_Life_Project%2385298ebb-OneClickInstall
desired = 0
relnotes:

One Click Install Alpha Viewer

Hey everyone!

This release we have the One Click Install Alpha Viewer. This is an early alpha release to streamline the experience of setting up the viewer on Windows computers and getting in world. This also will help ease the update process for viewers moving forward.

What's different

Viewers on Windows now use a new "one click" installer that installs the viewer to a local user directory.
Viewers on macOS still use the disk image method for drag and drop install.
All viewers will now use a new updater that makes updates more transparent.
- Viewers will no longer prompt the user to install an update. It will now install in the background.
Installing to custom locations is supported by the --installto command line parameter
Portable installations can be found on our GitHub: https://github.com/secondlife/viewer/releases/tag/Second_Life_Project%2385298ebb-OneClickInstall

At present, you will have two viewers installed: the one click viewer and the current viewer. This is expected, and will be improved in a future alpha.

Note: Updates don't quite work yet.

kurtlinden · 2025-12-22T18:55:22Z

Tested on build Second Life Project One-click 26.1.0.20387239236

Test plan provided to QA:

Does it install to [user]/AppData/Local
Does it run
Does it have an uninstaller in add/remove programs

I verified on Windows machine that the build installs with one click to [user]/AppData/Local and after install the viewer launches and runs successfully. Viewer is installed Second Life Project One-Click

I verified that the app can be removed in the add/remove apps section and the viewer is deleted and leaves behind a SecondLifeProjectOne-Click folder in [user]/AppData/Local containing just 2 files .dead and velopack (log?)

I verified you could successfully relaunch the app from the desktop icon and from the App list on the start menu.

I verified the Mac build installs on Mac the same way current release viewer does successfully

Issues noticed in testing.

After the viewer launches first time after install a updater error dialog shows https://gyazo.com/4d9e5a2c4b20e6179d449f1ec97afd92 which can be dismissed and login continues normally
On second login to the viewer, the desktop icon for the Second Life Project One-Click gets removed from the desktop and the same updater error shows. This is caused by the updater's delete_wrapper firing. It's meant to clean old local installs. velopack is a local install.
On third login to the viewer no more update dialog errors show

So in the spirit of wanting to get the one click install to get user feedback this seems to be meet those goals but the issues should be identified in the release notes to help out the users trying it out.

Passed QA based on test plan provided and goals of this release.

kurtlinden · 2025-12-22T19:18:40Z

Per discussion with grumpity, to make a good first impression with this the updater issues should be addressed before release.

Hecklezz · 2025-12-22T20:21:59Z

indra/newview/llvelopack.cpp

+
+static const wchar_t* PROTOCOL_SECONDLIFE = L"secondlife";
+static const wchar_t* PROTOCOL_GRID_INFO = L"x-grid-location-info";
+static const wchar_t* VIEWER_EXE_NAME = L"SecondLifeViewer.exe";


This to me seems unnecessary to hardcode the viewer exe name when it can be obtained from gDirUtilp->getExecutableFilename() and then use ll_convert<std::wstring>, since LLDir_Win32 will have been constructed already before WINMAIN has been called.

This would allow for better compatibility with TPV's so they don't all need to change this hardcoded constant to work with Velopack.

For sanity sake, I tested with my development build of Firestorm and after it ran the Velopack installer, inside on_after_install using gDirUtilp->getExecutableFilename() returned the correct exe name, the viewer worked correctly and the installer setup the shortcuts and protocols correctly too.

Dan-Linden · 2026-01-23T20:42:03Z

One Click Install Alpha 26.1.0.21295806042	Result	Comment
secondlife/iqa#596 Install Test	Passed	Passed
Overall Result	Passed	OK to ship Alpha

NOTES
Only installing and uninstalling was tested.
Updater tests did not pass. Updating this viewer may not be possible.

Anti-virus false positive report:

File	Security vendor analysis
SLVersionChecker.exe	SecureAge - Malicious Skyhigh (SWG) - BehavesLike.Win64.Generictrojan.tc
slplugin.exe	MaxSecure - Trojan.Malware.300983.susgen SecureAge - Malicious

kylelinden

One Click Install Alpha approved
viewer = 26.1.0.21295806042
build = https://github.com/secondlife/viewer/releases/tag/Second_Life_Project%2385298ebb-OneClickInstall
cohort = One Click Install
desired = 0

Geenz · 2026-01-26T20:37:45Z

deployed = https://github.com/secondlife/viewer/releases/tag/Second_Life_Project%2385298ebb-OneClickInstall

Hecklezz · 2026-01-28T15:14:14Z

indra/newview/llvelopack.cpp

+    register_protocol_handler(PROTOCOL_SECONDLIFE, L"URL:Second Life", exe_path);
+    register_protocol_handler(PROTOCOL_GRID_INFO, L"URL:Second Life", exe_path);
+    register_uninstall_info(install_dir, app_name, version);
+    create_shortcuts(install_dir, app_name);


Velopack already creates both the Desktop and Start Menu shortcuts based on the app name given to the --packTitle argument in the vpk call, it also uninstalls them for you as well.
So calling create_shortcuts here and the remove_shortcuts a little further below to do them manually, seems redundant?

The only difference I noticed, is that Velopack by default doesn't put the start menu shortcut inside of it's own folder, but the desktop shortcut is the same. Which also means, currently the installer creates two different start menu shortcuts (one in Start Menu\Programs\Second Life Test, the other just in Start Menu\Programs)
The velopack start menu shortcut location can be changed with the --shortcuts argument in the vpk call.

* #5335 Fix silent uninstall asking about registry * #5346 Uninstall older non-velopack viewer if of the same channel

Geenz added 2 commits December 19, 2025 12:50

Integrate Velopack installer and update framework

4dc59a8

Note: Updates don't quite work yet.

Try to get CI/CD working with velopack.

386316c

github-actions bot added c/cpp cmake python labels Dec 19, 2025

Geenz added 3 commits December 19, 2025 17:53

Update build.yaml

d4432c9

Update build.yaml

2bdd1c2

Update build.yaml

5baae4a

Hecklezz reviewed Dec 22, 2025

View reviewed changes

LettieLinden added the team:viewer label Jan 16, 2026

Geenz added 10 commits January 21, 2026 11:51

Add Velopack update support for macOS and VVM integration

ad82d46

Update Velopack version and dependencies

a9d125f

Update viewer_manifest.py

b2d4285

Improve Velopack packaging for macOS

158fc84

Update build.yaml

e6d2890

Update viewer_manifest.py

2906ad7

Update viewer_manifest.py

8fccef6

Update viewer_manifest.py

68be5c7

Update viewer_manifest.py

3acb531

Update viewer_manifest.py

85298eb

Dan-Linden requested a review from kylelinden January 23, 2026 20:42

kylelinden approved these changes Jan 23, 2026

View reviewed changes

kylelinden added the approved Thumbs up from Product label Jan 23, 2026

Geenz added this to the 2026.1 milestone Jan 23, 2026

Hecklezz reviewed Jan 28, 2026

View reviewed changes

#5346 Uninstall older non-velopack viewer (#5363)

a6b978b

* #5335 Fix silent uninstall asking about registry * #5346 Uninstall older non-velopack viewer if of the same channel

DarlCat mentioned this pull request Feb 15, 2026

[WIP] Replace autobuild with vcpkg and CMake build system modernization #5429

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One Click Install Alpha#5178

One Click Install Alpha#5178
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Geenz commented Dec 19, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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One Click Install Alpha Viewer

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