In order to Migrate/Move IIS7.5 application to IIS8.0 on another server, you will need to export the application pool and the site from IIS 7.5 and Import these on to IIS8.0.
Following the simple procedure below
ON IIS 7.5
To Export the Application Pools on IIS 7.5
Run the command below from the command prompt using the account with admin privilege
%windir%\system32\inetsrv\appcmd list apppool /config /xml > c:\apppools.xml
To Export all your website:
%windir%\system32\inetsrv\appcmd list site /config /xml > c:\sites.xml
On IIS 8.0
Import the Application Pools:
%windir%\system32\inetsrv\appcmd add apppool /in < c:\apppools.xml
Import the website:
%windir%\system32\inetsrv\appcmd add site /in < c:\sites.xml
Note you might need to tweak few things from the imported XML before the export.
