win32com.client.Dispatch Class Label
See the question and my original answer on StackOverflowThis "Celestron.Telescope" string is called a ProgID (you can google on this term quite easily).
They arere located under the HKEY_LOCAL_MACHINE\SOFTWARE\Classes
registry key for the whole machine and in HKEY_CLASSES_ROOT
for the current running user.
When COM creates an instance of a component, it will use the current user's view of the registry. Most keys are in HKLM but there can be some local overrides in HKCR.