Using session variable in webs Service using c#

Hi,

I have a web service in which I want to use a session variable that I'll create to be used in the web service.

The variable is called ListOfParts which I want to log to an event log in the web service.

Can I create a session variable to be used in the web service which would be created after creating the ListOfParts which is a count of parts which is done in another class.

What and how do I enable using session variables in the web service in order to see the session variable ListOfParts.  How do I create that session variable?

I am using c# for this effort.

Thanks in advance,

Isaac
webserviceVariables.zip