Thanks for all the info.

Yes, thanks! Useful info for sure.

Your best bet is to try out demos of the DAWs you are considering moving to. If the Sonar plugins work in those then you have your answer.

So I can confirm that TruePianos is limited to Sonar.

A confirmation and some additional info, based on my tests with Reaper:
 
Reaper will successfully scan and even "load" just about everything, but enforces the restrictions (on those items that have them) by bypassing the audio around the item after displaying an appropriate message.
 
VST items that work in Reaper:
LP-EQ
LP-MB
LP-64 EQ
LP-64 MB
VX-64
PX-64
TS-64
CA-2A
VKFX delay (IIRC this was not bundled, but was a free promotion)
Perfect Space
Melodyne (no ARA in Reaper)
Session Drummer 3
Studio Instruments
Z3ta+2
Dimension Pro
SFZ
Rapture
Rapture Session
Sound Center
Dropzone
RXP
Square
AD2
AAS
 
VST items bypassed in Reaper:
Adaptive Limiter
Nomad Factory BT
True Pianos Cakewalk
Breverb 2 Cakewalk
TH2 Producer
TH3 (Cakewalk)
R-Mix
AAS Session Instruments
 
Reaper also supports the DX format, so all Sonitus and Cakewalk DX plugins work there, as well as the DXi's TTS-1, Cyclone, GroovePlayer and PSYN II. These, I would imagine, will not work in DAWs that don't support the DX format.
 
 

ptheisen
A confirmation and some additional info, based on my tests with Reaper:
 
Reaper will successfully scan and even "load" just about everything, but enforces the restrictions (on those items that have them) by bypassing the audio around the item after displaying an appropriate message.
 
VST items that work in Reaper:
LP-EQ
LP-MB
LP-64 EQ
LP-64 MB
VX-64
PX-64
TS-64
CA-2A
VKFX delay (IIRC this was not bundled, but was a free promotion)
Perfect Space
Melodyne (no ARA in Reaper)
Session Drummer 3
Studio Instruments
Z3ta+2
Dimension Pro
SFZ
Rapture
Rapture Session
Sound Center
Dropzone
RXP
Square
AD2
AAS
 
VST items bypassed in Reaper:
Adaptive Limiter
Nomad Factory BT
True Pianos Cakewalk
Breverb 2 Cakewalk
TH2 Producer
TH3 (Cakewalk)
R-Mix
 
Reaper also supports the DX format, so all Sonitus and Cakewalk DX plugins work there, as well as the DXi's TTS-1, Cyclone, GroovePlayer and PSYN II. These, I would imagine, will not work in DAWs that don't support the DX format.
 
 

Thanks for this report.  Very helpful indeed.

@ptheisen - Thanks!

After playing a bit more with Reaper, I found an error in my list above. The three recent AAS instruments, Lounge Lizard Session, Strum Session and Ultra Analog Session, do NOT work in Reaper. They load normally without any message, but I could not get any sound out of them. At a minimum, the MIDI input appears to be disconnected, rendering them useless.
 
By sheer coincidence, the Focusrite Plugin Collective program is collaborating with AAS to offer these same three instruments for free (to registered Focusrite hardware owners) through December 8, so some of you may be able to obtain them for free that way if you don't wait too long. I did that today (I have a Saffire Pro 40), and now I have them working in Reaper.
 
If you don't have Focusrite hardware, these three instruments are currently on sale as the Session Bundle for half-price ($49).
 
Hope this info helps and that I haven't caused any problems for others interested in using these instruments in other DAWs.
 
 

Tom Riggs
What won't work are the DX based plugins like Sonitus. That's a shame but I'm sticking with Sonar till it dies or I do. Even if I have to load up a computer with windows 7 to do it.

 
Check this thread. Mr. Anderton already found a way to integrate most of them them into SOP.
 
Also I posted some links to DX chainers that may work for the remaining ones.