Addition of the extension does not look like a complicated task but apparently I see that DCOM queries against the Active Directory the extension uses fail. I use Windows Server 2012 with PHP 5.6, and the Active Directory services are located at another server.
The situation looks similar to the Double-Hop problem: the query fails for an authentication request coming from a remote client. If I use browser on the same server, the AD queries succeed. Nevertheless, there is something odd anyway: I built a simple ASP page performing the same requests against the AD, and this works for both local and remote clients.
Has someone faced this problem? Any ideas how this can be resolved? Am I missing something in use of the extension? I can think about building a local ASP-based web service to perform AD queries for the extension (modifying the extension to use corresponding web requests instead of direct AD querying) but this starts sound a bit insane.