Hi,
Are you aware of that hosting mode is no longer recommended?Before you go any further I recommend that you read the below blog post.
Future of Hosting Mode
http://blogs.technet.com/b/exchange/archive/2011/10/13/future-of-hosting-mode.aspx
Martina Miskovic
Martina,
You saved me from wasting my time on /hosting mode. Thanks a lot
XpresServers Hosting