You can find the path info in registry (HKEY_LOCAL_MACHINE\Software\Wow6432Node\MicroStrategy\Data Sources\CastorServer) and it is in the Location object.

I prepare a simple PowerShell script to get info:

get-itemproperty -path "HKLM:\Software\Wow6432Node\MicroStrategy\Data Sources\CastorServer" | select-object Location