I managed to install and configure OWA extentions in our demo environment thanks to a previous post.
I now have vault-icons and in the bottom-left the bar with Archive Explorer and Search Safes.
Openening, forwarding editing etc of a vaulted item works.
When trying to open Archive Explorer or Search Safes, I am getting an authentication-window. When giving the correct credentials, it opens Archive Explorer fine in a new window, and works as expected. When then opening the other one, no authentication needs to be done. (ie, opening and giving credentials for AExplorer allows opening of search archives directly, and viceversa)
I tried searching the forum and documents, because I believe I have seen this before (with a resolution). I could not locate this.
This is OWA 2003 (SP2) with EV2007SP2, Windows 2003 SP2