@RicaNeaga: I Kow you wanted to help and I thank you for that but I said multiple times and since the first post that a previous version of WinToolkit can integrate the French IE10 LP just fine, so I think we can safely draw the conclusion that this is not a MS bug in this case. @myselfidem: Only cab/msu (not IE10 exe directly) can be integrated with test15. I will post links and explanation in the French section in a minute.