Walter,
I have no good idea to you.

I myself check database comment for version number wich I stored there.
If the firstone runs an update on this database the others get something like "version mismatch, run update". But this means the old programm has to have the mechanism.

Agnes
>Agnes,
>
>I managed to make a SETUP file from installshield express which I could install in silent mode.
>
>However, now I've got to force each user that logon, to execute this setup from a loginscript.
>
>Any clues ?