How do you set the path for Rapture Session expansion packs?

I have this problem.  Since this thread has not been marked as "Solved" yet, I'll just pile on here ...
 
Specifically these Rapture Session expansions:
 - Session-Atmospheric
 - Session-Guitars
 - Session-Keys
 - Session-Orchestral
 - Session-Synths
 
These installers insist on installing to C:\Cakewalk Content\Cakewalk Sample Data\Rapture Pro\Multisamples...  This is my system SSD drive -- I never install content there. 
 
This is a full 3.0GB of extra multisample content on my system drive.
 
I have set Cakewalk Command Center to use the path D:\Cakewalk Content...  This normally works.
 
I told the Rapture Session installer to use D:\Cakewalk Content.  So far, so good.
 
But then the expansion installers don't ask, or respect the established content path, they just default to C:\... for some odd reason.
 
I thought at first I had overlooked something, so I renamed C:\Cakewalk Content\... and uninstalled Rapture Session and all of it's content.
 
It did the same thing again when I re-installed it, this time while watching carefully.
 
And I also looked for the registry entry listed in the previous post. I don't have that one.  I performed a Windows clean install in July and only installed X3 and Platinum after, so that registry entry may be from an older version installer.
 

There is a registry hack that will accomplish this:  HKEY_LOCAL_MACHINE\SOFTWARE\Cakewalk Music Software\ContentDir.  The default was C:\Cakewalk Content.  I set mine to D:\Cakewalk Content and it worked.  Hope this helps.

FrankKeyC
There is a registry hack that will accomplish this:  HKEY_LOCAL_MACHINE\SOFTWARE\Cakewalk Music Software\ContentDir.  The default was C:\Cakewalk Content.  I set mine to D:\Cakewalk Content and it worked.  Hope this helps.

Thanks, but under the key "HKEY_LOCAL_MACHINE\SOFTWARE\Cakewalk Music Software", the value for "ContentDir" is already "D:\Cakewalk Content".
 
I already have my paths set up correctly, it is the installer that is misbehaving.

FrankKeyC
There is a registry hack that will accomplish this:  HKEY_LOCAL_MACHINE\SOFTWARE\Cakewalk Music Software\ContentDir.  The default was C:\Cakewalk Content.  I set mine to D:\Cakewalk Content and it worked.  Hope this helps.

Thanks again. Your comment nudged me to keep searching.
 
I found the correct answer in a slightly different place on my PC.  But with the same effect that it corrected the problem.  Maybe the difference is due to different Windows or Sonar versions?
 
The method that I used to track it down should work for any version:
 
>Start with Windows Explorer and navigate to the offending folder, ex: "C:\Cakewalk Content\Cakewalk Sample Data".
>Right-click> copy the folder address as text from the address bar.
>Open Regedit and search (Edit> Find...) for the string containing the copied folder address "C:\Cakewalk Content\Cakewalk Sample Data"
>In my case it was a value within HKEY_LOCAL_MACHINE\SOFTWARE\Cakewalk Music Software\
>There was a value name "SampleDataDir" in the right-hand pane with the value data of "C:\Cakewalk Content\Cakewalk Sample Data".
>Changed it to "D:\Cakewalk Content\Cakewalk Sample Data" and the problem is fixed!