Autohotkey There is simply no better automation program on any OS. I even run a fully fledged tiling wm written in autohotkey. ( For reference, here's when I tricked r/unixporn into thinking it was bspwm https://www.reddit.com/r/unixporn/comments/nhzz3b/confession... )

Fluent search Spotlight on steroids, for windows. Apart from being a search/launcher, it has a bunch of atrociously good features. It lets you use a custom search indexing backend, which brings me to...

Everything A search indexer backend for windows. Really great search.