Confirm that the Microsoft Filter Manager Library version is 5.1.2600.2978 or later, to make the primary transaction log files readable
for Replication Agent. 
To determine the version of the library:
- Navigate to c:\windows\system32.
 
- Right-click fltlib.dll and select
            Properties.
 
          You see the Properties dialog box.
          
- On the Properties dialog box, click the
            Details tab.
 
- If the version is earlier than 5.1.2600.2978, go to the Microsoft Web site at
            http://www.update.microsoft.com/windowsupdate/v6/vistadefault.aspx?ln=en-us, and update your Windows system.