Register Classes on a Per-User Basis in HKCU

[This is preliminary documentation and subject to change.]

Recommendation   (Designed for Microsoft® Windows® Logo)

Applications should register class information in the HKEY_CURRENT_USER (HKCU) registry hive, not in HKEY_LOCAL_MACHINE or any other location.

Register class information in:

HKEY_CURRENT_USER\
  Software\
    Classes\