The "easiest" migration would be to VFP 9, but it depends on what your overall objective is.
VFP has also been dumped by Microsoft in 2009, though official support does continue, it's only a matter of time before that ceases too.
After that, it's all philosophical. It won't be cheap to migrate regardless of the path you pick. VFP developers are hard to find, on the plus side if you have Fox developers for your current system, they can start out by using VFP as a "Better FoxPro", while they come up to speed on it's more modern architecture (versus FPW2.6). You could consider one of the "Fox" alternatives like XBase++. It is based on the same "family" of development as VFP. (xBase, dBase, FPD, FPW, Clipper are all in this family, but of them, XBase++ is still being developed by Alaska software, and when I spoke to them a few months back, they are planning a major release next year that is meant to be as close to VFP as you can get without being VFP.
Moving to C# or Java, or VBA, etc, then literally every line will need to be re-written, and you will likely need to switch to SQL server. It's a tough road you face. The more complex your application is, the harder and more expensive it will be to make a move.
-S
Best Regards,
Scott
MIET, MASHRAE, CDCP, CDCS, CDCE, CTDC, CTIA, ATS
"Everything should be made as simple as possible, and no simpler."
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