Q: I tried to make a test from local to remote machine and when I "Create System Objects" on remote DB the following message appears: "Invalid request BLR at offset 249 function REPL$BIT_OR is not defined module name or entrypoint could not be found".

A: It's problem with "ib_repl" UDF library, there are common steps how to install the UDF library in "README.TXT". UDF installation may be sometimes tricky. Probably Interbase replicator must be restarted. I had similar problem, after several Firebirds restarts the server accepted new UDF.