I'm sorry, but I have my doubts as to how this 64-bit VFP works.

Where did this person get the source code to compile?

Do the indexes and CDXs still work? I'd bet that there's a lot of bit-twiddling going on there in the MS VFP 32 bit code.

I remember about 15 years ago I was working at a shop and "they" wanted to convert a VFP app to Java using a FREE JDBC driver. Well, I worked at Microsoft in the VFP group as a contractor and one of my tasks was to work with a third party vendor who made a lot of ODBC drivers back in the day (1997 or so). Well, after realizing they'd have to incorporate all the VFP functions that can be used in an Index and for what other reasons they gave up and eventually the MS team eventually put out the first VFP 6 ODBC driver.

Anyway, back to the FREE JDBC driver. It was not very smart. I used File Explorer or Process Explorer from SysInternals to see what this JDBC driver was doing under the hood.

Well, first thing when it opened a table (DBF) it looked for an IDX. Ok, good. Well, after not finding an IDX one assumes it would look for a CDX, but no it did not. It just assumed that there was no index. So, basically this JDBC driver out of the box was going to cause DBF vs. Index (CDX) corruption. And then I created an IDX and added some simple functions and it didn't know what they were. Bottom line, the author had a good idea, but the size of the task was too massive. End of story.