Hi Is it possible to install LLBLGen Pro silently from the command line? Thanks

yes, use

LLBLGenPro-v540-Full-setup.exe /S

if you specify /D=path

it will override the installation path (but can't contain any quotes). It's an NSIS installer so it uses the same arguments http://nsis.sourceforge.net/nightly/Docs/Chapter4.html#silent

The VSIX installer will run though as you can't uncheck the option when using the silent installer and that install is non-silent. So it's not really supported 100% but you can get a long way.

My network admin colleague found this post recently and attempted the silent install via the LLBLGen Designer version 5.3.1 installer but gets prompted on installing the Visual Studio 2017 extension (though you've mentioned that we probably can't bypass this VSIX prompt I think dated several years ago and wanted to confirm if this is still true today with version 5.3.1).

Are there additional command line arguments to silent install LLBLGen alone with the LLBLGen 5.3.1 installer (and not have LLBLGen VSIX Installer prompts since we do not want to install the LLBLGen VSIX extension at this time)?

We do perform silent installs of several VSIX extensions in the past provided by Microsoft and Oracle for example. The issue is we want to automate the LLBLGen installation onto over a dozen LLBLGen licensed PCs alone and are fine with or without the LLBLGen Visual Studio extension being installed as long as it is silent (and to prevent manually installing LLBLGen alone onto the PCs).

Thanks!

As the vsix installation is now optional, it can't be done silently sadly. (I tested it on 5.11 with the /S prompt). Looking at the nsis script, it's not designed to do silent installations.

Tho there's a simple workaround. Unpack the installation exe with 7zip into a folder, remove the $PLUGINSDIR from that folder. The other files are your installation. You then have to add a shortcut to LLBLGenPro.exe and that's basically it.