DDE communication in windows 10 not working

Hi everybody,
I am experiencing a very big problem in the windows 10 technical preview (build 9841) according DDE communication.
We have a large crm application that uses DDE communication for 2 business critical modules.
1. Communicate with MS Word (automaticly generate letters, property description etc.)
2. Communicate with a tool we written to interact with the telephone system.
If Windows 10 will no longer allow DDE Communication we have to know this very fast, to start developing new modules.
So my Question is:
Will Windows 10 no longer support DDE communication or is this only a bug in the technical preview?
To reproduce the problem you can just take some DDE Client-/Server Example Tools from the net (http://www.activevb.de/tipps/vb6tipps/tipp0404.html | http://www.activevb.de/tipps/downloads/tipp0404.zip | http://support.microsoft.com/kb/74861/de).
Our CRM Software as well as this little example tool works in WinXP, Win Vista, Win 7, Win8, Win8.1 but not in Windows 10.
When debugging I am Just getting Error 282 "Keine andere Anwendung hat auf die DDE-Initiative reagiert" which means that no DDE Application is responding.
Thanks for reading.
Because this is business critical for us a quick answer would be preferable.
Maik

Hi,
I have testet it with the new Windows 10 Build 9860 and DDE communication is working again.
Just perfect!
Best Regards
Maik

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