So, I finally managed to find the .dll files for my Waves plug-ins (C:\Program Files (x86)\Waves\Plug-Ins V10\H-Reverb.bundle\Contents\Win64) and copied the 64-bit versions to a folder where Vegas looks for VST plug-ins. But they are not showing up in the list in Vegas.
What's the deal here? Are Waves plugs somehow different and they don't work in Vegas? They work just fine in Cakewalk, my music making software.
I'm using Vegas Pro 19.