>Nadya,
>
>Can you diff your class VFP 8 and 9 VCX, VCT library files and see if the output shows anything noticeably different? I know these are binary files, per se, but I often use NotePad to look at these type of files (SCX, SCT, FRX, FRT) when something flakey is happening.
>
>Also, what happens if you PACK these class libraries? (Apologies if you've already done this - I haven't read the entire thread).
>
>Malcolm
>
>PS: Great detective work :)

Yes, we tried to pack libraries, it didn't help. VCX is the table, so we may want to compare two tables. I delegated the task to my colleague, because I want to work on couple of other things today.