Alright, I've got East West Symphonic Orchestra installed as well as the East West Symphonic Choirs installed.  I chose the default file locations suggested in the installation.  Now I'm trying to get the Play VST file to be included in SONAR's Plug In Manager so it can be chosen as a Synth in the list of instruments.  I cannot find it.  I must be missing something simple here...it has to be on the C: Drive, right?

I think mine was filed under Steinberg.  Look for the Dll  probably named play.dll or something like that.  It is there on your C drive.

Does the folder c:\vstplugins exist. If you chose a default install, that's where the VST files are located.  I suspect that folder needs to be included in the VST scan.

Note: I do not own this VST, I just read the user guide

My instance resides here: c:\program files\Cakewalk\Vstplugins\play_VST_x64.dll  
Best, HeyDan 

Thank you my friends for all of your input, but still no file.  By the way, I can open and use the Play application in standalone mode so I know the installation was successful.  I just sent an email to EWQL support for help.  This one is a mystery.

Hello there RobWS you can search for a file named play_VST_x64.dll in your system to locate the file path of your VST installed, another idea is check in the EW Installation Center go to the upper right hamburguer menu below your account name, click on it and go to the option "library directories", check the path and go to see if there is anything .dll related.
 
Hope this helps.

My EWSO installation relies on ILok in order to run.
 
Is this the case with yours?

Yes, an iLok is required for mine
 
EastWest support said the Play Vst file will be found in either "Program Files\Vstplugins" or "Program Files\Common Files\Vst2".  For those of you who have respondedso far, is that where you find yours?  No such luck for me.  Just for your information, this is what I did find in my computer:
 
C:\Program Files\Common Files\Steinberg\Shared Components
WordBuilderPlayVSTx64.dll  05/24/2012  3:48PM  7,659 KB
 
C:\Program Files\EastWest\WordBuilderPLAY
WordBuilderPlayMFXx64.dll  05/24/2012  3:48PM  6,331 KB
WordBuilderPlayVSTx64.dll  05/24/2012  3:48PM  7,659 KB
 
C:\Program Files (x86)\EastWest\WordBuilderPLAY
WordBuilderPlayMFXx64.dll  05/24/2012  3:48PM  6,331 KB
WordBuilderPlayVSTx64.dll  05/24/2012  3:48PM  7,659 KB
 
Sonar did detect the WordBuilderPlayMFXx64.dll file.  It's under the Midi tab in the browser.
 
So this brings up two questions.  Is WordBuilderPlayVSTx64.dll in your Sonar browser?  It is not in mine, just the MFX file.  And, what is the exact name of the Play VST file?  Thanks for everyone's help up to this point.  I've also continued my support thread with EastWest.

None of those locations are part of the default scan path.
 
An MFX location is read directly from the registry so the VST scanner is not an issue for them.
 
It appears to me "C:\Program Files\Common Files\Steinberg\Shared Components" may need to be added to the VST scan path in SONAR Preferences.
 
Personally, I prefer to install dlls into my existing scan path rather than add a bunch of vendor default locations but either method should work.

The name of the PLAY Engine file is play_VST_x64.dll mine was in C:\Program Files\EastWest try to reinstall the library because that's a really weird behaviour.