Thanks Claude,

I installed AVFP2 ok up to the point that the different shortcuts appeared in my Programs Menu. Then I started the Postsetup program and got the error. I had to manually define the AVFPDemo2 and AVFPDemo2r virtual directories. Then I run the WebAppBuilder to try the simple example and once again I got the error. I found out which virtual directory I had to define and could go on.

I am going to try recompiling all projects and will let you know what I get.