Disappear local port when restart print spooler

Hello,

I've a problem, when I restart the print spooler or I reboot the windows, the Local port disappears.
This error began after I ran the Printer Migrator Restore in Windows Server 2008, the file restore was from Windows Server 2003.

I added the local port using the snap-in Print Manager(Print Server)
Ex: \\svr01\Printer01

If I don't restart the service print spooler I can use normally this port, but I'm restart the service "Print Spooler" this port is removed.

This behavior didn’t occur before I run Print Migrator


SO: Windows Server 2008 R2 Standard