These features are not supported for Sybase replication.
Microsoft SQL Server clusters
Microsoft SQL Server virtual computed columns
Replication Server parallel DSI (for non-Adaptive Server Enterprise databases)
Replication Server warm standby (for non-Adaptive Server Enterprise databases)
Replication Server rs_init utility (for non-Adaptive Server Enterprise databases)
Replication Server rs_subcomp utility (for non-Adaptive Server Enterprise databases)
Replication Server automatic materialization (for non-Adaptive Server Enterprise databases)
Replication Server when replicating in an environment where other vendors are replicating (for non-Adaptive Server Enterprise databases)
Some Microsoft SQL Server 2008 features
Replication Agent does not support these Microsoft SQL Server 2008 features.