It is customary (and recommended) to install all of your 64bit VST's into:
C:\Program Files\VstPlugins
and all of your 32bit VST's into:
C:\Program Files (x86)\VstPlugins
and well behaved installers will query your Windows Registry for the default location and place their files in there as well.
Unfortunately, there aren't many well behaved VST installers and people get themselves in a lot of trouble placing these plug-ins all over their hard drive.
Since Steingerg invented VST's they place theirs in:
C:\Program Files (x86)\Steinberg\VstPlugins
So even Sternberg does't follow the convention.
The reason I am explaining this is because having only 3 locations to look for VST plug-ins should be more than enough. You should really keep them in the default locations.
Yes, this is a Vegas limitation but a reasonable one.
What possibly more could you want?
You have 3 options which each folder can hold and hosts hundreds of VST
plugins any given time. Even if an installer installs its files in another location,
they can still be copied in any of the 3 folder options.
Its best when you don't have them all over your drive.
Thanks for the confirmation guys
Unfortunatly as you say Izotope doesnt folow its own ruls 1 more would have been usefull for me
They are al in defalt locations but Ozone isnt picked up so it takes up 3rd location
Edius alows much more
It's a mess. Not helped by the installers fudging it. I've had no end of trouble with editing on the Timeline caused, yes, caused by VSTs not available. I then have to rescan VSTs or even uninstall and restart.