Right, getting nowhere fast with this one, so went back to the start and double checked everything still no joy. So I removed Apache 2.4 and built 2.2.34 from source and recompiled the example so/dll I've been working with, only changes I made was to use httpd22 rather than httpd24 packages, it worked first time, did this to prove to myself I was following the instructions correctly. I shall do some more digging around Apache 24.4 and the httpd24 packages I sure its going to be something really simple