>>>What is the best technique to use to read ASP session variables from Visual FoxPro?
>>
>>

>>LPARAMETER loRequest, loResponse, loSession
>>
>>loResponse.Write( loSession.Value("YourSessionVar") )
>>

>
>How do we proceed to have access to those parameters in order to pass them here?

Your ASP script should have object reference available, just pass to the class method being called.

ie.

From ASP page:
set ox = createobject("yourclass")
ox.yourmethod(Request,Response,Session)