Example XML Request
<request>
<procedure>
<execute namespace="SharePoint2007Provider" procedure="AddUsersToGroup" impersonate="1">
<executeData>
<target>http://WSSFE:8080</target>
<siteGUID>a70398a3-eca5-407b-b749-a2497bb343a8</siteGUID>
<subSiteGUID>3724eba3-d8d0-4370-9af9-ff31bd7e1385</subSiteGUID>
<groupName>SPNSTestGroup</groupName>
<users>
<user loginName="Fabrikam\Administrator" email="Administrator@Fabrikam.Com" name="Administrator" />
</users>
</executeData>
</execute>
</procedure>
</request>