If you are running 64bit there is a screen early in the install process to select 32 or 64bit (just like the update). It defaults to 64bit so in order to install 32bit the first time you had to make that selection. Don't forget to run the X3e update again after installing 64bit X3.

Sorry to show my ignorance scook, but how do I get to run the 64bit screen? 
Do I go in my downloads and select Sonar X3 and Open and go from there or what?
Unfortunately, as you can see, I need some ABC instructions.
As I said earlier, I know certain things, but in other case i am a dumb...dumb.
 
Thank you again for your help and patience. 
 
Regards
 
Gerry
 

If you failed to save the X3 installers, you will need to download them all again. There are no separate 32 and 64bit installers. Both versions are included and all the installers have a 32/.64bit screen just like the update you just ran.

Finally was able to get the Sonar X3 64 bits.
Also installed Xe 64 bits.
Will see in the next couple of days if this solves my problem of Kontakt causing Sonar to crash.
Thank you everyone for your help and input.
Regards
 
Gerry

This should end up resolving your original issue in this thread, as with a 64-bit Sonar running, it can take full advantage of whatever available memory is there when you launch it, so loading up several instances of Kontakt should work just fine.
 
A thought - sine you had been running a 32-bit Sonar, that means that any of those plugins available to that Sonar will also be 32-bit, and when you run 32-bit plugins in a 64-bit Sonar it requires bridging software (Sonar comes with and automatically will use BitBridge to attempt to let the 32-bit plugins run).  PLEASE NOTE that MANY folks have had all kinds of nightmares with Sonar project stability, when using 3rd party 32-bit plugins in a 64-bit Sonar.
 
Because of that, most folks have gone back to see if 64-bit versions of their 32-bit plugins are available (usually for free as updates or free additional downloads), and have tried to completely shift over to using only 64-bit plugins in a 64-bit Sonar.  I HIGHLY recommend that you too go through that process. as otherwise you will likely be posting again about stability issues with Sonar 64-bit.  For whatever the worth, I do NOT have my 32-bit plugin folder path added to the Sonar Plugin Manager search path for plugins.  What I DO do, is to have a sub-folder within my 32-bit plugin path, and I move any 32-bit plugins that I want to still try to use to THAT folder, and I test them out before deciding to use them in any serious production capacity - it is the path to that sub-folder that is added to the search path, so that ONLY tested and trusted 32-bit plugins are ever allowed to be loaded in 64-bit Sonar projects.
 
Bob Bone
 

Thank you Bob and every body else for your help and input.
 
Regards
 
Gerry

Well, YOU did the hard part - you lived through the problems :)
 
Hope all is well now for you with it.
 
Bob Bone