>Since an hour, I am having a weird problem. Whenever I built my application for the 2nd time, VFP freezes. I have to kill the application and restart VFP to be able to compile. I even rebooted and that is still the same. So, I quit VFP about 40 times in the last 20 minutes. Anyone has seen that behavior before?

What version and is this a Web Service?

If it is a Web service, have you add the project hook to the BeforeBuild method that stops IIS and re-starts it? I can't remember the name of the class, but it's in the FFC.