Migrate 8.6 win 2003 to 8.6 win 2008 ERROR

[Ufficio Unonet]

hello,

I have to migrate a windows server with plesk version 8.6 and Windows 2003 on a server with Windows 2008 server and plesk 8.6.

I tried to do a backup and restore on the new server but the sites are not seen, from what I read is a problem of ii6 ii7 and Microsoft.

You have no idea what it is?

thanks