Thanks for that trail, but there are no HP devices used at our company and no HP software is installed.
Would you by any chance know of any other specific services using/hijacking the WCF that we could look for or any other software likely causing the issue.
Reinstalling Studio didn't solve the issue neither, by the way.
We really need to solve this problem since it basically makes the Xbench plugin useless for us.
Thanks a lot in advance for any help you can provide!