In the Program Files\Garritan Personal Orchestra folder is a subfolder named VST with a file named PersonalOrchestraVST.dll

Am I correct that this file is useless if I have installed Kontakt Player 2, and similarly for the file named PersonalOrchestraDXi.dll in the DXi subfolder?

Same question for Jazz and Big Band.

For that matter, same question for the executables (PersonalOrchestra.exe and Garritan Jazz.exe) in the higher-level directories.