You can install and use VFP8 on the PC with previous versions of VFP w/o any problem. However EULA requires you to remove any previous version of VFP that were used as a base for upgrade to VFP8.

>I am considering installing VFP 8 UG on a production machine in my office that has VS 6 (full), VFP 7 UG.
>
>Some threads a while back seemed to indicate that installing VFP 8 UG on a machine with VFP 6 and VFP 7 (VFP 5 is there too!), would disable the earlier versions of VFP.
>
>Are there any issues related to ancestral functionality when installing VFP 8?
>Thanks!