David,

>Walter,
>
>>>did index file also hv different file type like table (*.dbf), such as ....2.X,3.X...etc..????
>>
>>What exaclty do you mean ?? Index files can have another extension than .CDX, yes. If looking at different VFP implementations you'll see that the *.DCX file of a database is really a normal .CDX file. In general you can name your index file with almost every extensions you wish, but I think you'll have problems to automaticly open them when you're opening the table.
>
>Perhaps he means "is the .CDX different for a 2.6 table, compared to a .CDX for a VFP table -- since the .DBF *is* different." ??

ahh, i think you're right.

To wai,

Since, VFP includes new datatypes such as Integer and datetime, the CDX also can contain more datatypes. Also a CDX can contain Primary can candidate indexes which were not possible in FP 2.x. So yes the VFP CDXs are somewhat different from their 2.x counterparts, but I don't think the're are significant changes in the internal structure of storing index information. Perhaps you want to explain why you want to know this ????

Walter,