I would think that building such an app in VFP 7 would be feasible. There are some nice features in VFP 9 if you have it, but if not, VFP 7 should be able to handle the layout that would be desired and support drag-n-drop. As far I can remember, VFP 8 was mainly a version for developers in that the features were at the programming level and did not really give that much to new user features. VFP 9 did add some User features for form layout (like tabs on side, polypoints for shapes, etc) but I don't think there is much change in the basic drag-n-drop functionality from VFP 7 to VFP 9.

From my perspective the things that VFP8/9 adds the most is the TRY-ENDTRY constructs and the Assign/Access methods for properties. But these are not must have for what you are proposing. Using VFP's native tables would also be a possibility if this is a small company - less than about 10 users, any more and you might consider using another back-end. Although I had developed an application back in the early 90's that had several hundred users in FP 2.0 but you have to be careful about the tables not getting corrupted.

As for the .Net responses -- they are not pertinent as this is not what you asked. For all that they said, why even .Net -- why not Java and use in a portal application. But again you didn't ask for what is the recommended development environment but if feasible in VFP 7.