Hi Ram,
I agree that it is no problem to simply upgrade a client from Notes 8.5.x to re 9.0.1, the contacts are only lost when the user gets a new pc.
Today I have tried to copy the dipTable.ser file to a new pc along with the recent contacts in the names.nsf.
The user has sent a couple of mails and had the client closed and open a couple of times, and the recent contacts are still there.
So this seems promising, thank you for your help.
Regards
Karen