win32api.RegQueryInfoKey
(int, int, long) = RegQueryInfoKey(key)
Returns the number of subkeys, the number of values a key has, and if available the last time the key was modified as 100's of nanoseconds since Jan 1, 1600.
Parameters
HKEY_CLASSES_ROOT
HKEY_CURRENT_USER
HKEY_LOCAL_MACHINE
HKEY_USERS
Win32 API References