I had a question around licensing and the BizTalk 2006 R2 WSS adapter. I have an environment where BizTalk is installed on a server and MOSS 2007 is installed on another server. We are interested in using the WSS adapter that BizTalk ships with. Since the WSS Adapter requires BizTalk to be installed on the SharePoint Server, do we need to buy another license of BizTalk to install the adpater on the SharePoint box?