bapu
I tried all the other installers and they all said I did not have the correct version of the "product" installed. I assumed this meant since SONAR Platinum was not installed the installer would not proceed. Which of course make sense.
There are some registry dependencies but the I do not believe program has to stay on the disk. How you get the registry updated is up to you. Installing the program may be the easiest way though or try the Command Center, I believe it will let you install "out of order." Never tried running the installers from the command line.
As I mentioned above, the CA-2A activation method depends on the installer used. The Command Center installer uses the same activation method as SONAR Platinum. If you did not install with the Command Center, there should be an activation option on the menu in the upper-right on the UI