Guenter,
As far as I can see, no-one has mentioned Foxweb yet. I have tried AFP and WWC also but have settled on Foxweb for all my 'VFP on the web' applications. It's easy to use and install, good value-for-money and well supported by the authors. Take a look at
www.foxweb.com - there is a 45-day trial version you can download.
Feel free to contact me if you need any more help regarding Foxweb.
Good luck with whatever you chose to go with.
Alan