If the replication is to be bidirectional, then merge is
almost certainly the solution you need. Use windows
synchronization manager or the activex controls to
initiate synchronization. To create the publication, use
EM on a different system, create the publication, then
script it out and apply the script on the MSDE instance,
after changing the instance names.
HTH,
Paul Ibison SQL Server MVP, www.replicationanswers.com
(recommended sql server 2000 replication book:
http://www.nwsu.com/0974973602p.html)

Hi

I need to replicate 2 MSDE installations so I can only choose between Merge
or Snapshot replications

The replication need to update both the publisher and the subscriber

It is only required to be initiated manually

Any advice will be appreciated

Shmuel Shulman