[python-win32] Python COM

[birdprince]

I have implemented a COM in C++,buy i don't know how to use this COM 
in python. 
For example: the COM's ProgID is "MyCOM1.AdvMethod".this COM have two 
interfaces,the default interface's name is IAdvMethod,the second 
interface's name is IBasicMethod.
I use this method to call the IAdvMethod's method,because IAdvMethod is the 
default interface
code example:
import win32com.client 
moncom = win32com.client.Dispatch('MyCOM1.AdvMethod') 
moncom.IAdvMethod(... 

who can tell me how to call the IBasicMethod's method?Thank you very much!