need help with property pge provider of USB Serial driver

hi,i have written a driver to provide COM interface for my USB Serial
port .everything
is working fine, the device is displayed in Device Manger as a serial port
with its COM number,
except for the Property pages in device manager; there aren’t any.
i have added the two registry entries in the Add Reg section of the inf
file.

HKR,PortSubClass,1,01
HKR,EnumPropPages32,“MsPorts.dll,SerialPortPropPageProvider”

i have read basics of class installers but i am still stuck.
Could any one point me in the right direction.

Sincerely,
Shahzad