>2 Questions:
>1) could it be possible that such a project hook does not act when you have add it on an existing project? I dont seem to get / see anything happening when I have attached ptojrcthook5.vcx to my project.

You may have to close and reopen the Project after attaching a ProjectHook.

>2) Would you know wether there exsists a brief 'How To Do" or Help file around?

Thre's a chapter Project Objects and Projecthooks in 1001 Things You Wanted to Know About Visual FoxPro By Marcia Akins, Andy Kramek, Rick Schummer book.