Does anybody remember an artical or case study discussing the problems with Foxpro 2.0 upgrade to higher DOS version?

One of my clients considering the upgrade. They have tried the conversion to Foxpro 2.6 previously and failed.

From my own experiance, I can't recall facing uncompartibility or similar problems in 2.0->2.5 upgrade, but again, it was has been a while.

Any comments are apreciated.

I have not found any DOS category so posting question under this one.

Anatoliy