Where is the plug in folder in PT Express?

[stef1]

Hi folks,

I am running PT Express [10] bundled with an M-Audio M-Track Plus interface on a Win 7 (64-bit). Now the Avid instruments (XPand, Vaccum, etc.) all show up in PT but so far I haven't been able to install any 3rd party plug ins (e.g., Softube Saturation Knob does not show up in PT.)
I guess the problem is that I don't know where the plug-ins are... after browsing the internet for 2.5 days I now actually know where the plug-in folders are in PT 7-11, both on Win and on a Mac, but ridiculously enough I can't find any of them on my PC, or any correct information for PT Express.

I found a couple of .dll here: C:\Program Files (x86)\Avid\Pro Tools\DAE\Controllers, but they have names like HWC.dll.
I also found folders with the right names (Boom, MiniGrand, Structure Free) here: C:\Program Files (x86)\Avid\Avid Virtual Instruments, but these folders contain only a single .big file each. (???)

So, if anyone has ever successfully installed 3rd party plug-ins for use in Pro Tools Express (not other PT versions) -- would you be so kind as to let me know?

Thanks a lot in advance!

Best,
Stefanie