The File Replication Service did not grant the user "%3" access to the API "%1". Permissions for "%1" can be changed by running ...

Windows Server 2008

The File Replication Service did not grant the user "%3" access to the API "%1". 
 
Permissions for "%1" can be changed by running regedt32. 
 
Click on Start, Run, and type regedt32. 
 
Click on the window entitled HKEY_LOCAL_MACHINE. Double click on SYSTEM, CurrentControlSet, Services, NtFrs, Parameters, Access Checks, and highlight "%1". Click on the toolbar option Security and then Permissions... 
 
Access checks can be disabled for "%1". Double click on "%2" and change the string to Disabled.

The File Replication Service could not prepare the root directory %1 for replication. This is likely due to a problem creating ... The File Replication Service detected an invalid parameter value in the registry. %1. The expected registry key name is "%2". ... The File Replication Service detected an invalid parameter value in the registry. %1. The expected registry key name is "%2". ... The File Replication Service did not grant the user "%3" access to the API "%1". Permissions for "%1" can be changed by running ... The File Replication Service did not grant the user "%3" access to the API "%1". Permissions for "%1" can be changed by running ... The File Replication Service failed a consistency check (%3) in "%1" at line %2. The File Replication Service will restart ... The File Replication Service has detected a duplicate connection object between this computer "%6" and a computer named "%1". ... The File Replication Service has detected a duplicate connection object between this computer "%6" and a computer named "%1". ... The File Replication Service has detected a duplicate connection object between this computer "%7" and a computer named "%1". ...