Principal Program Manager at the .NET product Group (Microsoft Corp in Redmond, Seattle). Focus on Machine Learning .NET (ML.NET), .NET Core, Microservices based architecture, Docker Containers, Azure services.
When installing AIF on a Dynamics AX 2009 server which is also a DC (Domain Controller), you gotta be careful, because, there are several issues regarding that.
This scenario shouldn't be common in a production environment, but, it is indeed quite common in a demo Virtual PC machine, where you have "everything in a box"...
So!, if you try to ...
If you create an AIF Service from scratch (like creating an AX query and generating the WCF Service with the AIF wizard) and then you try to consume it from an external .NET client app, you'll get an error (at least with AX 5.0 CTP3 drop2). On the other hand, you are able to consume, with no problems, all the out-of-the-box AX 5.0 AIF services...