>>>Has anyone experienced problems installing and running a compiled VFP app into a winXP64 or winMediaCenter PC?
>>>
>>>I have a app that my user says will not install on either of these systems but it works fine otherwise.
>>
>>You should test application on all Windows versions you expect it to run on before releasing it.
>
>Yes, these versions didn't exist when I released it.

Tell user that is not supported until you figure out what the problem is.