it's been a long time since I used the windows installer for labkey, and i doubt many labkey devs use it, but something recently brought up a memory from before I thought I'd pass along:

the installer adds both labkey and postgres. it puts postgres in a non-standard location, buried under c:\program files\LabKey Server\ or something like that.

if at some future point you want to upgrade postgres using the postgres GUI installer (ie. not the labkey installer), that's not obviously possible. whenever i did this, the postgres installer never recognized the existing postgres install, and the pg installer (at least last time i used it) didnt give the option to specify a custom install location.

if the purpose of the one-click installer is to simplify, you might want to consider the pg upgrade scenario and see if it works as you'd like. it has been at least i year since i used it, so maybe things have changed and/or i missed something at the time. i have no idea the labkey installer tries to upgrade postgres as part of the upgrade or not, but maybe that's the right route in order to be sure the pg version is labkey-compatible.

this isnt really a current obstacle, but i thought i'd mention it.