thanx for the answer...
maybe I don't explain well
I made a tool that copy the contains of an account (source) in another acount (destination) via odbc.
on the destination account: I drop all the tables , create the same tables, same columns as the source account, and I copy the contains of each source tables into destination tables.
all is working except for the blob (see my first message please)
for all the value i do something like that
RsDestination.Field1.Value=RsSource.Field1.Value
RsDestination.UpdateBtach
for the blob if i do that i have the error message.
It's more clear ? If not i will write a sample of what I do, tomorrow because I'm not at my office right now.
thanx