I can also run in Admin mode rather than turning UAC off. Not sure why it did not work before.

The other 2 games work fine in standard mode, any ideas what file(s) might be a concern?

I tried to run in Admin mode, but that failed.

So I turned off UAC and that works. But my system then says it is at risk and wants me to turn it back on to be secure.

Do you know the files I can change permissions so I do not need to turn UAC off?

Anyway, I got a workaround for now. Thanks.

I tried installing the other 2 games BOA and ACW and both get further than WWI. I even auto updated BOA. I thought there might be a file I need that the other game might have, but no joy. I got this dvd for the WWI game, as that is my main interest.

I am using the new 3 game DVD, so I do not think it is a corrupted file. I got the same error on the demo.

I installed MS Visual ++ 2010 beta, so the C libs should be there.

What is a UAC filter?

When I run the WWI.exe it gets Debug Assertion failed
Program File: C:\Program Files\WWI\WWI.exe
File: fopen.c
Line: 54
Expression: (file != NULL)

I have the latest SW in Vista.