We did the same thing: 100% offline test lab.
Then, making two "dummy" DNS entries for each zone is what I feel what I did..
Again: Here's what I did (which isn't working.)
Here is my (fake) verisign.com zone: http://screencast.com/t/Lj03pKZfhL
Here is my (fake) windowsupdate.com zone: http://screencast.com/t/KWx4BcbtWY
From the client, it resolves perfectly.. http://screencast.com/t/l7ztdrsgfPjp
Are you able to see my mistake?
I hope so, because again, all Thinapp launches are still very slow.
Thanks in advance.