Sorry I was away for a while after all this. I just retried everything and 4.2.3 still wont work.
Vampire_pilot I never saw that image you loaded its gone now.
I put my backup copy back on my computer from the external drive. 4.2.2 Hotfix4 for works in all modules and have been just using that until I had more time to try this again...
Today I re downloaded the 4.2.3 updates and reinstalled them. The installer starts, then it shows the different parts being extracted, when its done there is no message and the installer just closes. I thought there was supposed to be some sort of message that it all worked?
Anyway the result was the same, accept this time I can't even launch the other modules, before just WAW didn't work.
I'm installing this over a working copy of 4.2.2 Hfx4, the only things I've changed is mission folders, like the single mission folders that I don't use much I just renamed so they were lower on the lists, and I created my own for my missions.
Everything works fine before I install the 4.2.3 folders?