Change property handler for files are in SystemPropertyHandlers

I made property handler extension (Like a "Title" property column) for some file types but when I want to register Shell extension for real types like avi or 3gp extension wont work but another types like avi1 or 3gp1 works like a charm.

I search regisrery and PropertyHandler added for avi and avi1 but for avi found a key named "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\PropertySystem\SystemPropertyHandlers" that contain values for 3gp and avi and it has a different value than my handler and I cant change or delete this value.

I want to ask how can I change these type property handler in SystemPropertyHandlers?