As Sergey said, you can't. See the VFP7 ReadMe Addendum at http://msdn.microsoft.com/vfoxpro/downloads/updates.asp

>I am using bookmarks, and taskmarks to mark where I need to comeback and do stuff in my code.
>
>The problem is that as I add and delete lines of code, the marks don't stay with the line of code they started out with. How do I get them to stop moving?
>
>Thanks.
>
>Daniel