Remote-App lost focus / Screen/Window jumping

Hi everybody,

we have a new Terminal Server with Remote-Apps and a very interesting problem.

Host: ESXi 5.5

Guest: Windows Server 2012 R2

Remoteapp: CAS (not importend, all Remote-Apps have the problem)

Client-OS: Win7 and Win 8.1

Now the problem:

A Remote-App is started on a client - this works fine. The Remote-App opens a lot of windows (new mail, customer informations and so on) and it happens that the active windows lost the focus and jumps into the background and another windows is in front with the focus.

The problem is not reproducible and with this caution it is not possible to work with the Remote-App.

I found following hotfix (http://support.micro...b/2964832/en-us) but it is not applicable to the clients.

If somebody needs additional information, i will be available.

Thanks for your help and time!

Kind regards

srkonus