Dale,
It's not just a 'spaces in the path' problem. Instead of just trying to run the .exe try using the icon that the setup program creates. Here is the actual command line run when I click that icon:

M:\UTnav\utnav.exe -dM:\UTnav\VFP500.DLL

I had the same problem and never had spaces in the path of the sudirectory that UT Navigator was in. Michel suggested this fix and it worked immediately.
-Dore

>I have VFP 6.0 installed on this computer.
>
>I installed UT Nav following the directions. Once in a directory called navigator and once in directory named utnav. Both times it comes up with the same error message that Michelle got.
>
>Any ideas?
>
>
>>>Anybody use this? I downloaded and installed it, but when I try to run it, it
>>>tells me that it was compiled in a previous version of VFP. Do you have to
>>>have a certain version of VFP to use it?
>>
>>Nope, you just have to install it in a path with no spaces in it. In other words, overwrite the default path.