>Knowing Microsoft I usually install new programs on an empty or offline machine, but not always find out what the new installation does to existing registered programs etc.
>
>I am working on a very large project and just don't have where to put an extra machine around me.
>
>Anybody with experience on having both verions on the same machine?
>
>thanks


Be careful if you use Active-X controls in VFP5. Some of these controls are replaced by VFP6 and work differently.

Example: in VFP5 you have MSACAL70.OCX and in in VFP6 you have MSCAL.OCX. Only one at a time can be registered. Code can be changed to make the VFP5 code work with either control, though.

Other controls have different versions and both can be registered.

Other than that, no problems that I've encountered.