You create a new ReplicationPostingAcceptor object by calling the ReplicationServer.OpenPostingAcceptor method, as in the following example, where ReplPA is the name you give to the new ReplicationPostingAcceptor object:
Option Explicit
On Error Resume Next
dim ReplServer
set ReplServer = CreateObject("Crsapi.ReplicationServer")
ReplServer.Initialize("")
dim ReplPA
set ReplPA = ReplServer.OpenPostingAcceptor
...
'Release objects
set ReplServer = Nothing
set ReplPA = Nothing