[SOLVED] Instantiate COM object that doesn't have ProgID by class/interface name

Instantiate COM object that doesn't have ProgID by class/interface name

pywin32 docs for client-side COM show this basic way to instantiate COM objects:

obj = win32com.client.Dispatch("<ProgID>")

I'm trying to work with PersistentZoneIdentifier akin to Manipulating the zone identifier to specify where a file was download from – The Old New Thing - MSDN blogs. That class, as the registry at HKEY_CLASSES_ROOT\CLSID\{0968e258-16c7-4dba-aa86-462dd61e31a3} shows, doesn't have a corresponding ProgID.

I see that there's an underlying pythoncom.CoCreateInstance function that accepts a CLSID to instantiate and an IID to apparently query from it.

But this is inconvenient because I have to use unintelligible GUIDs instead of human-readable names.

The question is:

Is there a stock way in pywin32/underlying WinAPI to look up the aforementioned GUIDs by names? (do not suggest searching the registry by hand)
Or maybe some other way to instantiate that object with names?

_{What I tried and failed: win32com.client.IDispatch(<class/interface name>), pythoncom.IID(<class/interface name>). Also looked through the Net, MSDN and PyWin32 docs, of course.}

Solution

There is no, and can't be any, "stock mechanism" to instantiate a class/query an interface by its name because their names aren't guaranteed to be unique, unlike GUIDs.